Updated 6/3/12 at 4:44 p.m.

CHICAGO (STMW) – A 19-year-old man died Saturday morning after he fell down and suffered head injuries outside a residence in the Lincoln Park neighborhood, an autopsy has determined.

William Tobin, of the 7000 block of North Ridge Boulevard, was found unresponsive Saturday morning on a porch in the 1000 block of West Belden Avenue, which is near DePaul University, the medical examiner’s office said.

He was pronounced dead at 10 a.m. Saturday at the Stein Institute.

An autopsy Sunday found that Tobin died of craniocerebral injuries suffered from a fall, the medical examiner’s offfice said. Alcohol intoxication was a contributing factor, as well, the medical examiner’s office said. His death was ruled an accident.

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