PHILADELPHIA (WPVI) -- Authorities say they've arrested the man responsible for a violent attack inside a South Street bar.
The suspect is identified as 21-year-old Alfredo Nicotra.
Detectives say surveillance video shows Nicotra speaking with another man inside Paddy Whacks Pub back in late February.
Police say Nicotra then hit the man in the head with a glass and started punching him.
A bouncer stepped in to separate the men.
Nicotra is facing several charges including aggravated assault.