By Ava Pittman, WPIX

OLINVILLE, Bronx -- (WPIX) -- A man who allegedly beat a 14-year-old boy on the Bronx River Parkway is in police custody, while cops hunt for several other men other men caught on video kicking, punching and stabbing the teen.

Police arrested Ramon Paulino, 21, for the June 18 attack on Tuesday. Cellphone video of the assault shows a large group of men as they attack the 14-year-old victim on the median of the Bronx River Parkway near the East Gun Hill Road exit.

Officers found the teen unconscious and unresponsive after a 911 call around 5:30 p.m. He'd been stabbed repeatedly, police said. The teen was rushed to the hospital where he remains in critical condition.

Paulino was charged with attempted murder, gang assault and assault.

Anyone with information on the attack has been asked to call police.

Submit tips to police by calling Crime Stoppers at 1-800-577-TIPS (8477), visiting, or texting 274637 (CRIMES) then entering TIP577. Spanish-speaking callers are asked to dial 1-888-57-PISTA (74782).

FULL STORY: New video shows group beating, stabbing 14-year-old boy on Bronx River Parkway; 1 in custody - WPIX