Tribune photo illustration

Tribune photo illustration (Chicago Tribune)

A 16-year-old boy who drowned after falling off rocks along Lake Michigan on the North Side, despite efforts by his friends to pull him out of the water, has been identified, authorities said.

An autopsy today determined Gyron Webb, of the 1400 block of West 51st Street, died of drowning, according to the Cook County medical examiner's office. A secondary cause of death was listed as hypothermia from being submerged in the cold lake water.

The manner of Webb's death could not be determined, according to the office. 

Webb had been hanging out with the friends and talking to some girls they had just met around 6 p.m. near Irving Park Road and the lake, police said. 

He fell into the water while playing on the rocks and some of the friends went in after him, police said.

A passerby was finally able to pull the boy out after he’d been under the water for about five minutes, police said. He never regained consciousness and was pronounced dead at Advocate Illinois Masonic Medical Center.

Police said the boy was out of the water by the time officers arrived.

Webb was a ward of the state but police did not have details.

asege@tribune.com

Twitter: @AdamSege