Authorities began a search for Rivera after her four-year-old son was found floating alone in a rented boat in Lake Piru.
Cause of Death
The Czech-born musician and composer also worked with Iggy Pop and Mick Ronson.
According to the Cook County Medical Examiner, the 21-year-old late rapper had toxic levels of both codeine and oxycodone in his system.
The veteran actor was also known for roles in Fort Apache, The Bronx, Once Upon a Time in America, and Moonstruck.
The Swedish singer lost her battle with brain cancer.
Authorities also found 70 pounds of marijuana and prescription cough syrup upon searching the plane.
He also portrayed Oscar the Grouch for more than five decades.
The 21-year-old rapper/singer suffered the seizure while walking through Chicago’s Midway Airport.
The veteran actor passed away Friday following a battle with brain cancer.
Liza Womack says various managers ignored his wellbeing and supplied him with illegal drugs.
The 75-year-old rock pioneer and producer passed away on Sunday.
A funeral will take place this Sunday in Des Moines, Iowa.