Originally reported by PopEater

'Grease' actor Jeff Conaway, whose shambolic life was made painfully public during a 2008 stint on 'Celebrity Rehab,' has slipped into a coma and is in critical condition following a drug overdose last week. The former 'Taxi' star's manager, Phil Brock, says the 60-year-old was found unconscious on May 11 after possibly OD-ing on pain pills.

Brock would not disclose what hospital Conaway is admitted to, only that it is located in Encino, Calif. The actor's recovery is uncertain.

"He is in a coma and unresponsive at this time," Brock told E! Online. "He turned his head two days ago, but nothing since."
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