Adam Goldstein, known to fans as DJ AM, was found dead in his Manhattan apartment Aug. 28, at the age of 36. According to reports, numerous prescription pill bottles were found in his home, and he had a history of drug abuse. An autopsy was performed and the cause of death was ruled to be "accidental." Many of friends of Goldstein (who ended his engagement to Nicole Richie in 2006) spoke out about the tragic loss -- including ex-girlfriend Mandy Moore and close friend Travis Barker. "I'll never forget everything we've been thru and every time I play the drums I'll think of you," the Blink-182 rocker tweeted. "U were an amazing friend/DJ/human being."