PITTSBURGH (KDKA) – One suspect was arrested and another is still wanted for allegedly beating a man and leaving him unconscious on a sidewalk in Oakland.

Pittsburgh Police say 27-year-old William Murphy was arrested Tuesday by West Mifflin and Munhall Police officers. Police say they’re still looking for 30-year-old Kevin Allison.

(Photo Credit: Pittsburgh Police)

Both are facing aggravated assault charges in an assault on the 300 block of Atwood Street around 3 a.m. on March 14, police say.

Officers arrived on scene Saturday and found the victim unconscious.

They transported the victim to the hospital in serious condition.

The victim, Chester Glenn, is recovering from head trauma and underwent successful surgery to have fluid removed from his lungs following the attack, his family says.

The family said Glenn was jumped by a group of people on Atwood Street. A witness recorded the attack and posted it online.

The family said they were made aware of the situation through social media after the violent video went viral online. The family said you can see Glenn on the ground being punched and kicked multiple times in the head by a group of unknown people.