The young son and stepson of a Fort Campbell soldier charged with fatally shooting his estranged wife and another woman have testified against him.

Brent Burke is charged with murder in the slayings of his estranged wife, Tracy Burke, and her former mother-in-law, Karen Comer, at Comer's home in central Kentucky.

The younger boy, who was four at the time of the slayings, testified Saturday that he saw his father in the home with a gun.

The older boy, who was nine at the time of the slayings in 2007, testified that he didn't see the shooter's face, but recognized his stepfather's voice.

Burke's attorneys questioned the reliability of the boys' testimony.