The woman's ex-boyfriend is now behind bars.Police arrested 23-year-old Brandon Foster on Thursday night. He's accused of killing the women on Tuesday night and then setting a fire to cover up the crime.Foster is the former boyfriend of Samantha Zenszer, 20.Police said when Zenszer broke up with Foster, he didn't take it very well, and he allegedly stabbed her to death.Police said he then beat Violet McCall, 79, to death because she was a witness."As far as we know, this was nothing more than a relationship that the victim wanted ended. The suspect wouldn't accept that," said Chief Inspector Joseph Fox, with the Philadelphia police.Police said the break-up happened during the holidays.
Slideshow: Fire Crews Find Two Women Dead
