The beating was delivered by a man described as being a man of Hispanic or Pacific Island descent with dark red curly hair, a chunky build, a pot belly and "no neck."
Eric Anthony Bustillos, come on down.
Bustillos, 21, has been charged with second-degree assault against Charles Gonsher, 23.
Gonsher suffered broken facial bones and brain hemorrhaging that could have killed him.
Look below to see the (fairly accurate) police sketch that helped lead to Bustillos's capture, as well as additional details from the Boulder Police Department:
Police arrest suspect in life-threatening assault
Investigators have arrested a suspect in connection with a life-threatening assault that occurred at about 12:45 a.m. on Saturday, March 6, on the southeast corner of 11th and Walnut streets. The suspect, Eric Anthony Bustillos, date of birth of 12/7/1988, turned himself in on Wednesday, March 17, after detectives obtained a warrant for his arrest.
The suspect was identified after police released a composite sketch prepared by a witness and shared information about the crime with the community and with the University of Colorado Police Department. UCPD sent out an e-mail to the campus population. That e-mail resulted in a significant tip.
The victim and a friend had left the Walrus Saloon and were attempting to get a cab when they got into a confrontation with a group of three men. Both sides have given different accounts of that encounter. Bustillos is accused of punching the victim in the face, causing him to fall to the ground and lose consciousness. The suspect and his friends then ran away.
The victim, Charles Gonsher, 23, remained unconscious for several minutes. According to doctors who treated him, he suffered brain hemorrhaging as well as broken facial bones and likely would have died if not seen quickly by medical personnel. He is expected to need additional surgery.
Bustillos has been booked into the Boulder County Jail on a charge of second-degree assault.