DNA used to find hit and run suspect

DNA evidence has landed a man in jail on charges of manslaughter.

Roger Ramirez, 42, didn't have any comments as police moved him in handcuffs Monday night. But police say what he did left them speechless in November.

"It was hard for us to handle the scene because of the emotions of the family," said Sgt. Carlos Delgado of the San Antonio Police Department.

It was in broad daylight, when a pick-up truck left a road on San Antonio's far North Side and struck Ryan Stevens while he was trimming trees. Stevens was killed. The pick-up was stolen, police said; it was speeding and there was not even an attempt to hit the breaks. The pick-up eventually crashed and the driver took off running, but he left behind just a little bit of DNA on the airbag.

"[It's] fair to say without the DNA evidence, we would not have a case tonight," said SAPD Police Chief William McManus.

Police couldn't find Ramirez because he's essentially homeless. They got a lucky break when he reported to his parole officer Monday.

Ramirez denied he was at the wheel, but police said his own DNA will prove otherwise.

Of course, DNA can't prove whether Ramirez was drunk or whether he stole the truck, only that he was there.

Stevens' widow said she is happy and relieved by the arrest.