Kevin Souffrant, the ex-boyfriend of a woman who was shot to death in her apartment March 9, was charged with criminal homicide Thursday, according to Lancaster city police.

Souffrant, 35, was charged last week with illegal possession of a firearm, aggravated and simple assault, making terroristic threats and endangering children after police discovered he had pistol whipped the victim, 21-year-old Shadae Taylor-Brooks, and threatened several other occupants of the apartment with a handgun just before the shooting.

City police were not releasing additional details regarding what prompted police to file the additional homicide charge against Souffrant Thursday. Det. Aaron Harnsih, who is leading the department's investigation, did not immediately return calls for comment Thursday.

Souffrant lived with Brooks in the apartment in the 1100 block of Wabank Road, police said. An argument between the two began in the early morning hours of March 9 and Souffrant threatened Brooks and two other women in the apartment with a gun, police said.

The argument escalated and Souffrant struck Brooks with the pistol twice and threatened to kill everyone in the apartment, including four young children, police said.

The two women with Brooks managed to escape the apartment with three of the children but Brooks' and Souffrant's 6-month-old child was in the apartment when gunshots were reported shortly before 4:40 a.m., police said.

Both Brooks and Souffrant were hospitalized with gunshot wounds after police arrived and Brooks was pronounced dead shortly after arriving at an area hospital.

Souffrant's condition was unknown as of Thursday, but he was expected to survive as of last week, according to police.