Jacksonville rapper Ksoo has been sentenced to 10 years in prison after pleading guilty on Monday to a 2019 murder. The rapper, whose real name is Hakeem Robinson, is already serving a life sentence after being convicted of a 2020 murder in July 2025.
Robinson pleaded guilty to second-degree murder on Monday in the killing of 16-year-old Adrien “Bibby” Gainer.
Gainer was shot to death on Feb. 25, 2019 at New Hope Apartments, formerly known as the Hilltop Village Apartments. Investigators reportedly recovered 45 shell casings from the scene, according to Robinson’s arrest warrant.
The warrant says that on the day of the teen’s murder, Robinson chased Gainer through the apartment complex before shooting him at close range in the back of the head/neck area. Following the murder, the warrants states that Robinson posted several pictures and videos on social media bragging about it.
Robinson received life in prison for the January 2020 murder of Charles “Lil Buck” McCormick on Oct. 1, 2025.
McCormick was shot to death in Dames Pointe Plaza on Merrill Road on Jan. 15, 2020. The crime was motivated by the death of Robinson’s stepbrother Willie Addison, who was shot when coming out of a club exactly a year before McCormick’s murder.
The two murder cases are related to a web of other crimes in Jacksonville and other parts of the state involving a gang rivalry. Robinson’s father, Abdul Robinson Sr., brother Abdul Robinson Jr., and cousin Leroy Whitaker were also convicted in McCormick’s murder.
Abdul Robinson Sr. was sentenced to time served, Abdul Robinson Jr. was sentenced to 12 years, and Whitaker received life in prison.