A suspect was arrested Wednesday night in the killing of Jahseh Onfroy, the 20-year-old rapper known as XXXTentacion, the Broward Sheriff’s Office announced Thursday morning.

Dedrick Devonshay Williams, 22, of Pompano Beach, Fla., was arrested shortly before 7 p.m. in Pompano Beach, on charges including first-degree murder — described in documents as “murder dangerous depraved without premeditation” — as well as grand theft of a motor vehicle and operating a vehicle without a valid driver’s license.

A statement from the sheriff’s office said that more details, including Mr. Williams’s arrest warrant, would be released later today.

XXXTentacion, a gifted but controversial rapper who was highly influential on a generation of young rappers who have taken root chiefly on the online platform SoundCloud, was killed on Monday outside a motor sports store in Deerfield Beach, Fla. In a previous statement, the sheriff said that XXXTentacion had been approached by two armed suspects as the rapper left the dealership.

Sheriff’s representatives did not immediately answer further questions on Thursday about the arrest.

XXXTentacion had been awaiting trial on charges including aggravated battery of a pregnant victim, false imprisonment and witness tampering. Those charges led to his music being banned from Spotify’s playlists last month in conjunction with a short-lived policy about “hateful conduct,” with R. Kelly apparently the only other affected artist.

But when the policy was rescinded after just three weeks, XXXTentacion’s music was restored. And in the wake of his death, Spotify promoted his music with a “rest in peace” tribute on its main page and placement on the top two spots of its influential RapCaviar playlist.

On Tuesday, Spotify users around the world streamed XXXTentacion’s music 10.4 million times — breaking a record set last year by Taylor Swift for the most streams by an artist on a single day.