The pair dated for two years.
Mastodon singer-guitarist Brent Hinds broke the sad news via Instagram.
The 26-year-old rapper had long battled substance abuse.
Reynolds passed away Thursday from cardiac arrest.
New details indicate that a used syringe was found near Pavone’s unconscious body before he died of an accidental overdose.
O’Riordan had been drinking heavily prior to her unexpected and tragic passing.
A statement issued through the band’s publicist reveals Kyle Pavone’s cause of death.
The drummer had only been with the veteran stoner metal act for a year.
Pavone joined the metalcore band in 2008 as its “clean vocalist.”
A Rock and Roll Hall of Fame inductee, King is credited for co-writing songs including “Sweet Home Alabama”, “Workin’ for MCA”, and “Saturday Night Special”.
Korn’s ex-manager’s tweets that Deven Davis died of an overdose.
The couple were reportedly estranged at the time of Deven’s death.