A second person has been arrested in the murder of XXXTentacion.

Michael Boatwright, 22, is facing first-degree murder charges in the killing of the 20-year-old rapper, according to the Broward Sheriff’s Office. Detectives are calling Boatwright a gunman in XXX’s murder and are still looking for an additional gunman.

Boatwright was initially arrested last week on an unrelated drug charge and has a lengthy criminal past, including several drug charges and an arrest for battery.

Dedrick Devonshay Williams, 22, was previously arrested and charged with first-degree murder in the killing of XXXTentacion outside RIVA Motorsports in Deerfield Beach on June 18. He has pled not guilty.

A third man, 22-year-old Robert Allen, is considered a “person of interest” in the case. Allen was captured on surveillance video at the motorcycle store where XXX was shopping before he was killed.

Authorities say robbery was the motive in the killing of XXXTentacion, born Jahseh Onfroy. Following his death, thousands of fans, friends, and family showed up to celebrate the rapper’s life at a public memorial in Sunrise, Fla.