ABC News' 20/20 Co-Anchor Deborah Roberts looks back at the beloved actor's life and career.

Ozzy Osbourne, a founding member of Black Sabbath who earned the nickname "Prince of Darkness," died on Tuesday, his family ...

Ozzy Osbourne delivered his last-ever live performance with the original lineup of Black Sabbath at Villa Park soccer stadium ...

Ozzy Osbourne’s death at age 76 has stunned the music world. Less than three weeks after his epic farewell show at Villa Park ...

Malcolm-Jamal Warner, best known for his role as Theodore "Theo" Huxtable on the "The Cosby Show," has died from an accidental drowning off the coast of Costa Rica reportedly while on a vacation.

Malcolm-Jamal Warner, the actor perhaps best known for starring in the TV sitcom "The Cosby Show" as son Theodore "Theo" Huxtable, has died at 54.