Chris Cornell had fresh track marks on his arms when he was found dead in his hotel bathroom

Chris Cornell may have had more than a few Ativan in his system when he committed suicide last week.  

Sources are now telling TMZ that the Soudergarden frontman was found dead with fresh and 'obvious' track marks on his arms - indicating that he may have injecting drugs. 

The 52-year-old first tried heroin when he was 12 years old, and struggled with multiple addictions - but eventually got sober around 2002. 

Cornell's bodyguard found him dead in his hotel bathroom last week, with a band around his neck, after getting a call from Cornell's panicked wife who said he had been slurring his words on the phone to her after his Detroit concert.

Cornell reportedly told his wife Vicky that he 'may have taken an extra Ativan of two'. Ativan, an anti-anxiety medication, can sometimes cause suicidal thoughts. 

The rocker's exact cause of death won't be known until toxicology tests are finished, which usually take weeks. 

However, the new report about track marks on Cornell's arm does appear to line up with what his longtime house engineer and tour manager Ted Keedick told TMZ about Chris' behavior at his last show. 

Teedick told TMZ that Cornell seemed 'high' and 'f***** up' during the Soundgarden performance in Detroit.   

'Chris was out of character from note one of the show. I've never heard or seen him that way before, at least if we did not cancel a show,' Ted Keedick - who spent more than 10 years with Cornell as engineer and tour manager - said. 

However, Teedick said it didn't appear that Cornell was at all depressed.