FORT MYERS, FL-You can still see the blood in the road where just last night Erasmo Contreras witnessed a man being beaten with a wrench by two young men.

Contreras says, "I just seen a bunch of blood on his face, he was all red."

Seeing Contreras, the suspects started running.

He says, "I started chasing them and I knew my nephew was behind me, they got a little bit ahead of me, they got on their bikes."

Contreras says he and his nephew then got into his truck and chased them.

"He just ran right next to us, and i said , there he goes!"

Contreras chased one suspect across Palm Beach Boulevard, finally catching him.

"I kind of dragged him out to the side of the street, and then I held him there until my nephew came and I called 911."

At the 16-Year old's home, his mother says she's in shock.

She says, "He's good kid, good boy. Who he go out with, I don't know last night."

Deputies wonder the same thing. they're still looking for the second beating suspect.

"They're not broken or anything."

Even though today, Contreras says he feels like he's taken a bit of a beating himself, he says he wouldn't have it any other way.

"There's no heroes or anything, it's just someone trying to help somebody else."