Published: Nov 26, 2010 9:11 PM EST
Updated: Nov 26, 2010 1:39 PM EST

RUSKIN, Fla. (AP) - Hillsborough Sheriff's officials say finding the gunman who killed two men and wounded four others Thanksgiving morning is a top priority.

Investigators say the shooter arrived at a home early Thursday in a green minivan, asked for someone not at the house using that man's nickname and opened fire with a .45-caliber weapon before driving away.

Brothers Sergio and Juan Guitran died at a local hospital. Richard Cantu was shot in the head and is in extremely critical condition.

Three others are in stable condition.

The suspect is described as a white man in his 30s or 40s with short bushy hair, wearing a black T-shirt with a "sheriff logo" on the front and the word "security."

Anyone with information can call Crime Stoppers at 1-800-873-8477.

(Copyright 2010 by The Associated Press. All Rights Reserved.)