Philadelphia police search Tianna Thomas, 19, for stabbing two sisters, killing one and seriously injuring the other. The investigators said Thomas stabbed the 23-year-old Shantae garrison several times in the chest, back and legs during a fight in the neighborhood.
Garrison was taken to the nearby hospital where she died.
Thomas also reportedly stabbed Garrison's 28-year-old sister, who was transported to the same hospital and was listed in critical condition.
The sister, who was not named by the police, was taken to the same hospital and classified in critical condition.
Investigators said a video of the incident showed up to seven other women who were with Thomas at the time of the knife assault and took part in the assault.
The group approached the victims and several other women and a fight ensued.
The Philadelphia police urged Thomas and other alleged women to surrender.
Philadelphia police said Thomas would face charges of murder and attempted murder.
