DALLAS (AP) – Police in Dallas say they are investigating whether the killings of two transgender women and an assault on a third are connected. Maj. Vincent Weddington said Tuesday during a news conference that there are similarities in the three cases. No arrests have been made. The most recent killing occurred over the weekend. Twenty-three-year-old Muhlaysia Booker was found shot to death Saturday. Her death came a month after a cellphone video showed her being brutally beaten in a separate incident. Police say the first killing, which was also a fatal shooting, occurred last October. They say the assault happened in April and the victim was stabbed repeatedly.