Lenny Ignelzi, File, Associated Press
FILE - In this Jan. 5, 2012 file photo, United States Marine Staff Sgt. Frank Wuterich arrives at a court room at Camp Pendleton with lead defense attorney Neal Puckett in Camp Pendeton, Calif. Opening arguments in Wuterich's will be Monday, Jan. 9, 2012 _ more than six years after his Marine squad in 2005 killed 24 Iraqis, including unarmed women and children in the town of Haditha.

CAMP PENDLETON, Calif. — A former squad mate of a Marine implicated in the deaths of 19 Iraqis in 2005 has told a court-martial that after a roadside bombing the group raced to nearby homes, firing rounds and tossing grenades, even though he heard no gunfire and saw no weapons or Iraqis fleeing.

Former Cpl. Steven Tatum testified Tuesday in the Camp Pendleton trial of Staff Sgt. Frank Wuterich, who faces nine counts of manslaughter for the deaths of civilians, including unarmed women and children, in the town of Haditha.

Wuterich of Meriden, Conn., is the last defendant in one of the biggest criminal cases against U.S. troops from the war.

Prosecutors have implicated him in 19 of 24 Iraqi deaths.

Wuterich's attorneys say the squad came under fire after a bomb killed one Marine, prompting him to order troops to clear the homes.