updated 8/17/2009 9:05:53 PM ET 2009-08-18T01:05:53

A driver accused of slamming head-on into a bicyclist, who was left in the car's back seat after he toppled over the roof and crashed through the rear window, was jailed Monday on an intoxication manslaughter charge.

Vincent Paul Riojas, 27, is accused of hitting Ronnie Monroe Keller, 59, on Saturday in Grand Prairie, a suburb of Dallas where both men lived. Investigators said Riojas was driving on Texas 180 when he drifted into oncoming traffic.

The impact hurled Keller into the windshield of the car and flipped him over the roof before he crashed through the rear window, investigators said.

Riojas drove from the scene to his home and apparently tried to hide the car in a side yard before fleeing, according to a police statement released Monday.

Riojas' relatives found Keller critically injured in the car and called police. Keller was dead when he arrived at Methodist Dallas Medical Center.

Police suspected Riojas had been drinking alcohol, though toxicology tests haven't been released.

Riojas was being held on $150,000 bond in the Grand Prairie City Jail. He also was charged with resisting arrest and failure to stop and render aid.

A clerk at the city jail said he had no record of an attorney for Riojas.

Copyright 2009 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.

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