KATY PERRY'S  ex-boyfriend JOHNNY LEWIS has reportedly died at the age of 28.

The actor's body was discovered in the driveway of a home in Los Feliz, California, yesterday.

The 81-year-old woman who owned the property was found dead inside, according to TMZ.

Johnny dated Katy, in 2006 - before she met ex-husband RUSSELL BRAND

He played Marissa Cooper's friend Dennis 'Chili' Childress in The OC and had more recently appeared in shows Sons Of Anarchy and Bones.

He also starred opposite Kristen Stewart and Dakota Fanning in 2010 film The Runaways.

The actor is believed to have murdered his 81-year-old landlady before officers discovered his body underneath a balcony outside the house.

He had been released from prison just six days earlier after serving time for assault.

It is unclear at this point whether Lewis jumped or fell to his death.

Police officers arrived at the home where Johnny was renting a room to find the landlady dead and two other men injured, saying Johnny had attacked them with 'superhuman strength'.

It's believed Johnny was under the influence of PCP, a hallucinogenic drug, when he seemingly decided to leap from the balcony after reportedly killing the old lady.

Katy is believed to be devastated, however she was aware of Johnny's destructive personality when they were dating.

A source told US magazine: "He was in trouble then and she couldn't help him. A lot of her songs were partially inspired by him."