{"id":351741,"date":"2026-03-28T05:19:08","date_gmt":"2026-03-28T05:19:08","guid":{"rendered":"https:\/\/www.newsbeep.com\/nz\/351741\/"},"modified":"2026-03-28T05:19:08","modified_gmt":"2026-03-28T05:19:08","slug":"recidivist-offender-david-cossill-sentenced-after-glenfield-auckland-robbery-turns-violent","status":"publish","type":"post","link":"https:\/\/www.newsbeep.com\/nz\/351741\/","title":{"rendered":"Recidivist offender David Cossill sentenced after Glenfield, Auckland robbery turns violent"},"content":{"rendered":"<p class=\"jcUtdRSv\" style=\"display:none\">While Cossill isn\u2019t alleged to have been involved in the bloody attack, it is agreed that he helped plan the robbery inside the suspected drug house and that he provided his co-defendants with a car and a sawn-off double-barrelled shotgun to get the task done. <\/p>\n<p class=\"jcUtdRSv\" style=\"display:none\">\u201cI really hope you can do that,\u201d Judge Lummis said on Thursday of Cossill\u2019s expressed desire to live a better life. \u201cYou need to keep this positive attitude &#8230;.\u201d <\/p>\n<p class=\"jcUtdRSv\" style=\"display:none\">But the judge also pointed to Cossill\u2019s more than 200 prior convictions, and the many chances judges have afforded him in the past \u2013 some of which left other judges likely regretting their charity after Cossill reoffended within days. <\/p>\n<p class=\"jcUtdRSv\" style=\"display:none\">\u201cYou, in the Crown\u2019s position, present a considerable ongoing risk to the community,\u201d Judge Lummis noted. <\/p>\n<p>Machete rampage<\/p>\n<p class=\"jcUtdRSv\" style=\"display:none\">\u201cMake sure they got tha shit on them.\u201d<\/p>\n<p class=\"jcUtdRSv\" style=\"display:none\">That was the instruction Cossill gave to at least one co-defendant on July 15, 2024, hours before the robbery took place.<\/p>\n<p class=\"jcUtdRSv\" style=\"display:none\">Court documents outline how three people arrived at the Glenfield house around midnight \u2013 the co-defendant who would later wield the machete and two other unidentified men. <\/p>\n<p class=\"jcUtdRSv\" style=\"display:none\">Police initially alleged that Cossill was one of the unidentified men at the property, but he insisted throughout the court process that he was not there. He agreed to plead guilty after the summary of facts was amended to indicate that he helped plan the heist but didn\u2019t attend. <\/p>\n<p><img  alt=\"David Cossill has been sentenced to prison for helping to plan a robbery at an Auckland home in which two people were attacked with a machete. Photo \/ Supplied\" class=\"article-media__image responsively-lazy\" data-test-ui=\"article-media__image\"\/>David Cossill has been sentenced to prison for helping to plan a robbery at an Auckland home in which two people were attacked with a machete. Photo \/ Supplied<\/p>\n<p class=\"jcUtdRSv\" style=\"display:none\">Under either scenario, however, he was guilty of aggravated robbery, which carries a sentence of up to 14 years\u2019 imprisonment. <\/p>\n<p class=\"jcUtdRSv\" style=\"display:none\">Court documents state the three intruders lay in wait at the house until the target, who lived there, returned from walking his dog around 12.20am. The assailants followed the resident inside his home and an argument began over money that was allegedly owed to a co-defendant\u2019s deceased brother-in-law.<\/p>\n<p class=\"jcUtdRSv\" style=\"display:none\">The assailants left the house but returned a short time later. Although they already had the gun, one of them grabbed a machete they found at the house. <\/p>\n<p class=\"jcUtdRSv\" style=\"display:none\">The violence appears to have started immediately upon their return, but it was instead directed at two men who had been visiting the house \u2013 one of whom had laughed while observing the earlier argument. <\/p>\n<p class=\"jcUtdRSv\" style=\"display:none\">One of the assailants held the gun to the first victim\u2019s face as he sat on a couch while the other hit him with the machete four or five times in the face and head, according to the summary of facts that Cossill agreed to. <\/p>\n<p class=\"jcUtdRSv\" style=\"display:none\">They then turned to a second visitor, also seated on the couch. <\/p>\n<p class=\"jcUtdRSv\" style=\"display:none\">That victim raised his hands in an attempt to block the machete blows, but one of the assailants pulled his hooded sweatshirt over his head and dragged him to the floor before resuming the machete attack. <\/p>\n<p class=\"jcUtdRSv\" style=\"display:none\">By the time they turned their attention to the person who lived there, who they had initially intended to rob, the man\u2019s wife had called 111 from a neighbouring room. <\/p>\n<p class=\"jcUtdRSv\" style=\"display:none\">The man was pushed against a wall and ordered to get down on the floor. The shotgun was pointed at him, while the man with the machete started explaining what he intended to do with the blade. <\/p>\n<p class=\"jcUtdRSv\" style=\"display:none\">But when they realised police were on the way, they instead grabbed the man\u2019s house and car keys and fled. <\/p>\n<p class=\"jcUtdRSv\" style=\"display:none\">The resident suffered only a cut to his thumb, but his houseguests fared much worse. <\/p>\n<p class=\"jcUtdRSv\" style=\"display:none\">The first victim suffered cuts to his finger, chin, neck and eyebrow. The second victim, meanwhile, suffered multiple cuts to his face and a wound to the top of his head deep enough that his scalp was visible, as well as cuts to his lower back, buttock, thumb and knee. <\/p>\n<p class=\"jcUtdRSv\" style=\"display:none\">\u201cA bone fragment was removed by medical staff due to the head injuries incurred,\u201d the summary of facts states. <\/p>\n<p>\u2018Out with a bang\u2019<\/p>\n<p class=\"jcUtdRSv\" style=\"display:none\">In the end, the property stolen was \u201cnot overly significant\u201d, even though \u201cit was expected that valuable property and cash would be seized\u201d, Judge Lummis noted.<\/p>\n<p class=\"jcUtdRSv\" style=\"display:none\">The shotgun sourced by Cossill, she said, was a primary component of the planned heist. <\/p>\n<p class=\"jcUtdRSv\" style=\"display:none\">None of the victims provided a victim impact statement.<\/p>\n<p class=\"jcUtdRSv\" style=\"display:none\">\u201cBut I have absolutely no doubt this incident must have been terrifying for all four people in the house,\u201d the judge added. <\/p>\n<p class=\"jcUtdRSv\" style=\"display:none\">\u201cThere is no doubt that the offending here was very serious.\u201d<\/p>\n<p><img  alt=\" Auckland District Court Judge Kirsten Lummis. Photo \/ Alex Burton\" class=\"article-media__image responsively-lazy\" data-test-ui=\"article-media__image\"\/> Auckland District Court Judge Kirsten Lummis. Photo \/ Alex Burton<\/p>\n<p class=\"jcUtdRSv\" style=\"display:none\">Had Cossill been one of the principal offenders, the Crown likely would have sought a starting point of 10 to 11 years, prosecutor Jared Lowyim had noted. However, he and defence lawyer George Burns agreed that it should be lower for Cossill. <\/p>\n<p class=\"jcUtdRSv\" style=\"display:none\">It was accepted that the machete was an \u201cunknown element\u201d to Cossill, having been picked up at the scene by his co-defendant, the judge said. But she added: \u201cSomeone could have easily been killed when a firearm is involved.\u201d <\/p>\n<p class=\"jcUtdRSv\" style=\"display:none\">Taking the gun into consideration, Judge Lummis ordered a starting point of five years\u2019 imprisonment before considering uplifts and reductions for personal factors. <\/p>\n<p class=\"jcUtdRSv\" style=\"display:none\">The judge ordered a 15% uplift for his prior criminal history, which included 219 convictions. When asked to estimate how much of his life he had spent behind bars, Cossill reckoned it was about 20 years. <\/p>\n<p class=\"jcUtdRSv\" style=\"display:none\">\u201cYour history of possession of weapons is very concerning,\u201d Judge Lummis said, briefly noting <a href=\"https:\/\/www.nzherald.co.nz\/nz\/crime\/west-auckland-gang-member-david-cossill-who-shot-as-police-surrounded-his-home-sentenced\/EG7PS5J2KE2G4N3RGYDUKRZ3LM\/\" target=\"_self\" rel=\"nofollow noopener\" title=\"https:\/\/www.nzherald.co.nz\/nz\/crime\/west-auckland-gang-member-david-cossill-who-shot-as-police-surrounded-his-home-sentenced\/EG7PS5J2KE2G4N3RGYDUKRZ3LM\/\">his 2021 police standoff<\/a>. <\/p>\n<p><img  alt=\"David Cossill told a judge this week that he is finally ready to make a genuine effort at getting his life on track.  Photo \/ Supplied\" class=\"article-media__image responsively-lazy\" data-test-ui=\"article-media__image\"\/>David Cossill told a judge this week that he is finally ready to make a genuine effort at getting his life on track.  Photo \/ Supplied<\/p>\n<p class=\"jcUtdRSv\" style=\"display:none\">On that occasion, the police Eagle helicopter had followed him home from a confrontation at a Massey petrol station after he got into an argument with others there and <a href=\"https:\/\/www.nzherald.co.nz\/nz\/west-auckland-incident-man-in-custody-after-firearms-incident\/W2XD6DN7EEUWSWKRCDOVY56AG4\/\" target=\"_self\" rel=\"nofollow noopener\" title=\"https:\/\/www.nzherald.co.nz\/nz\/west-auckland-incident-man-in-custody-after-firearms-incident\/W2XD6DN7EEUWSWKRCDOVY56AG4\/\">fired a pistol into the air from his car window<\/a> as he sped off. <\/p>\n<p class=\"jcUtdRSv\" style=\"display:none\">Once home, he consumed meth, unaware that police were evacuating his neighbours and calling in the armed offenders squad. A six-hour standoff resulted, during which he at one point fired a gun into the air from his home\u2019s back deck and threatened to kill police. <\/p>\n<p class=\"jcUtdRSv\" style=\"display:none\">He was so high at that point that he thought it might be good to \u201cgo out with a bang\u201d, the court was later told at his sentencing on that charge. <\/p>\n<p class=\"jcUtdRSv\" style=\"display:none\">\u201cI consider you have suffered enough and nobody has given you a chance to address your addictions,\u201d Judge Mary-Beth Sharp said during his July 2022 sentencing for the charge, describing Cossill as \u201csomebody that this country has failed dismally\u201d.<\/p>\n<p class=\"jcUtdRSv\" style=\"display:none\">It was a reference to his systematic deprivation during his childhood, both in the care of his recidivist criminal father and in state care. <\/p>\n<p class=\"jcUtdRSv\" style=\"display:none\">Judge Sharp ordered 21-and-a-half months\u2019 imprisonment but said he could reapply for home detention if a suitable drug rehab facility was available.<\/p>\n<p>Fresh start<\/p>\n<p class=\"jcUtdRSv\" style=\"display:none\">The police standoff case wouldn\u2019t be the first or the last time a judge had tried to give him a chance. <\/p>\n<p class=\"jcUtdRSv\" style=\"display:none\">Just 12 days before the robbery took place, Cossill had been standing before another judge in Wait\u0101kere District Court, where he was sentenced for assault with intent to injure and unlawful possession of a firearm. That judge had ordered intensive supervision, based in part on the fact that Cossill had already spent a significant amount of time in custody awaiting the sentencing. <\/p>\n<p class=\"jcUtdRSv\" style=\"display:none\">He was again sentenced to supervision five months later, in December 2024, the same day police charged him with the robbery. <\/p>\n<p class=\"jcUtdRSv\" style=\"display:none\">But Cossill said this week he has finally had enough of the criminal lifestyle. He told the judge he wants to move away from Auckland and its bad influences, pursuing a \u201cfresh start\u201d while staying with his aunt and niece. <\/p>\n<p class=\"jcUtdRSv\" style=\"display:none\">\u201cI\u2019m told you\u2019re making real efforts,\u201d Judge Lummis said. \u201cGoing forward, you want to remain offence-free.\u201d<\/p>\n<p class=\"jcUtdRSv\" style=\"display:none\">Judge Lummis agreed with her colleagues who had dealt with Cossill in the past that his troubled childhood was partially to blame for his significant methamphetamine addiction and his near-constant cycle in and out of prison. <\/p>\n<p><img  alt=\"David Cossill has been sentenced to four years in prison for his part in the attack.  Photo \/ Supplied\" class=\"article-media__image responsively-lazy\" data-test-ui=\"article-media__image\"\/>David Cossill has been sentenced to four years in prison for his part in the attack.  Photo \/ Supplied<\/p>\n<p class=\"jcUtdRSv\" style=\"display:none\">She hoped his latest assertion wasn\u2019t just empty words but marked a genuine desire to be there for his children and his grandchildren. <\/p>\n<p class=\"jcUtdRSv\" style=\"display:none\">The four-year sentence she settled on reflected two 15% reductions \u2013 for his guilty plea and for his background \u2013 and an additional 5% reduction for his remorse and efforts to change. <\/p>\n<p class=\"jcUtdRSv\" style=\"display:none\">\u201cI wish you the very best of luck with the Parole Board hearing,\u201d Judge Lummis said, noting that Cossill\u2019s release should be considered soon due to the amount of time he spent in jail awaiting the sentencing. <\/p>\n<p class=\"jcUtdRSv\" style=\"display:none\">The defendant thanked her as he was escorted back to a holding cell. <\/p>\n<p class=\"jcUtdRSv\" style=\"display:none\"><a href=\"https:\/\/www.nzherald.co.nz\/author\/craig-kapitan\/\" rel=\"nofollow noopener\" target=\"_blank\">Craig Kapitan<\/a> is an Auckland-based journalist covering courts and justice. He joined the Herald in 2021 and has reported on courts since 2002 in three newsrooms in the US and New Zealand.<\/p>\n<p class=\"jcUtdRSv\" style=\"display:none\"><a href=\"https:\/\/www.nzherald.co.nz\/nz\/the-daily-h-your-fast-smart-guide-to-the-days-biggest-headlines\/VQR5CULLQRECZP2ORSWPGDORBU\/?utm_source=nzherald&amp;utm_medium=article&amp;utm_id=nz_cta\" rel=\"nofollow noopener\" target=\"_blank\">Sign up to The Daily H<\/a>, a free newsletter curated by our editors and delivered straight to your inbox every weekday.<\/p>\n","protected":false},"excerpt":{"rendered":"While Cossill isn\u2019t alleged to have been involved in the bloody attack, it is agreed that he helped&hellip;\n","protected":false},"author":2,"featured_media":351742,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[13991,21653,74,51,186306,6284,2837,3989,20209,9872,26663,21695,8455,90342,671,8454,1334,3958,424,5812,111,43,139,69,17699,675,34592,19429,27517,5161,12633,37136,1361,1961,6859,22974,32951,20424,686,5977],"class_list":["post-351741","post","type-post","status-publish","format-standard","has-post-thumbnail","category-new-zealand","tag-13991","tag-adult","tag-after","tag-auckland","tag-cossill","tag-david","tag-during","tag-effort","tag-entire","tag-finally","tag-fired","tag-genuine","tag-getting","tag-glenfield","tag-incident","tag-including","tag-jail","tag-judge","tag-life","tag-make","tag-new-zealand","tag-news","tag-newzealand","tag-nz","tag-offender","tag-police","tag-ready","tag-recidivist","tag-robbery","tag-sentenced","tag-spent","tag-standoff","tag-that","tag-this","tag-told","tag-track","tag-turns","tag-violent","tag-week","tag-which"],"_links":{"self":[{"href":"https:\/\/www.newsbeep.com\/nz\/wp-json\/wp\/v2\/posts\/351741","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.newsbeep.com\/nz\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.newsbeep.com\/nz\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/nz\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/nz\/wp-json\/wp\/v2\/comments?post=351741"}],"version-history":[{"count":0,"href":"https:\/\/www.newsbeep.com\/nz\/wp-json\/wp\/v2\/posts\/351741\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/nz\/wp-json\/wp\/v2\/media\/351742"}],"wp:attachment":[{"href":"https:\/\/www.newsbeep.com\/nz\/wp-json\/wp\/v2\/media?parent=351741"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.newsbeep.com\/nz\/wp-json\/wp\/v2\/categories?post=351741"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.newsbeep.com\/nz\/wp-json\/wp\/v2\/tags?post=351741"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}