by KYW's John McDevitt

Autopsy results  have determined that the 36-year-old South Philadelphia  man who died Wednesday after being attacked by a group of teens in center city was a homicide, and a 16-year-old is being charged with murder.

A spokesman for the Philadelphia medical examiner says the death was ruled a homicide due to asthma contributed by blunt-force injuries.

Deputy police commissioner Richard Ross say the attack was apparently random:

"I can't even imagine someone just targeting an individual for nothing, simply because they don't like the way they look or they just don't have anything better to do."

On Wednesday about 2:30,pm Sean Patrick Conroy (in family photo above) died after a group of teens allegedly attacked him along the westbound side of the Market-Frankford subway-elevated, at the 13th and Market Street station (see previous story).

Police nabbed 16-year-old Kinta Stanton of the 4900 block of N. Smedley Street and are charging him as an adult. He is a sophomore at Simon Gratz High School. 

Police were seeking some other teens who fled. The investigation continues.