their burks county home. nbc 10's cydney long reports on the wife's calls for help and the family's final hours together. >> reporter: mark short spent friday august 5th at herve park with his children, willow, the tiny warrior and m.j. his only son and leanna. the next morning they were dead along with short's wife megan who planned to move from the family home with their children that very day. >> mark short committed the homicide of his wife, three children and the family dog. >> reporter: investigators say the children were in their pajamas, each shot once. mark short used a gun he purchased just weeks before as the short's relationship unraveled. investigators say that while neither mark or megan short had filed for divorce, they say there had been two domestic altercations just weeks prior to this horrific tragedy. in early june police say they fought inside a philadelphia hotel and didn't call police. on july 18th megan did dial 91