“Methodical.” “Cold.” “Premeditated.” These are words West Virginia State Police Sergeant Ronnie Gaskins uses to describe 16-year-old Skylar Neese’s killers, fellow 16 year olds Shelia Eddy and Rachel Shoaf. But these girls weren’t just teens; they were also Skylar’s so-called ‘best friends.’

Sergeant Gaskins was the lead investigator in the shocking 2012 murder case, and is now back in the spotlight with the release of a new Hulu documentary, Friends Like These: The Murder of Skylar Neese.

In this interview, Ronnie gives our host, Senior Investigative Reporter Anne Emerson, his chilling inside perspective on a case that still unsettles the investigators who unraveled it. He reacts to previously unshared details from Skylar’s father, Dave, including a moment Dave nearly took matters – literally — into his own hands. The conversation also brings disturbing evidence to light that raises alarming questions, like why was Skylar’s necklace, discovered by one of the suspect’s mothers, mailed to Dave Neese — was this a token stolen from Skylar at the murder scene? What are her killers truly capable of? And what will happen if – and possibly when – they are released from prison?