After releasing surveillance pictures of the suspect, the Long Beach Police Department says multiple tips led them to the area of Atlantic Avenue and San Antonio Drive, where they took him into custody Wednesday.
The attack happened over the weekend and the boy's father, Billy Brown, shared photos of his son's injuries with Eyewitness News.
Father demanding answers after his 12-year-old son attacked on bus in Long Beach
"This guy just started hitting my son in the head like he was on UFC or something," he said.
The boy is recovering, but his dad says he won't be getting back on the bus anytime soon.
Additional details about the assault suspect were not released.