Investigators said the siblings got into a heated argument over money. Reed became violent, grabbed a knife from the kitchen and stabbed her brother.
Officers were called out to the unit on the 12100 block of San Fernando Road at around 8:40 p.m. When they arrived they found the victim bleeding and lying on the floor. He was transported to a hospital where he died.
Reed was arrested and charged with murder. She is being held in lieu of $ 1 million bail.