Click "WEB EXTRA: Surveillance video of attack."
Police say the man they're looking for is well known to authorities. However, police have not yet released his name.
Action News first told you about this vicious attack in the victim's own words last week.
20-year-old Dewayne Taylor says it was 12:15 a.m. last Thursday that he boarded a SEPTA North Broad Street line when he dozed off.
The video shows the assailant telling a young boy to sit down.
He then pulls a hammer out of a bookbag and proceeds to pummel the victim.
After striking him a number of times with a hammer, the attacker pulls Taylor down on the floor and beats him some more.
Then he throws him off the train where they struggle and disappear off-camera.
According to the victim, the man continued to assault him and tried throwing him into the track area.
All along, the victim told us the attacker kept chanting something in Arabic. He distinctly remembers the word "Allah."
Police were stunned some 20 passengers scattered and did nothing to stop the attack.
Amazingly the victim escaped with head injuries and two broken fingers. It is the first attack captured on tape since SEPTA began installing cameras on its system last spring.
After finishing interviewing a number of witnesses who were on that train, police are expected to ask the District Attorney's office to file criminal charges against the suspect.
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