Dallas police are investigating unsolved murders and attacks on male-to-female (MtF) transgenders to determine if a serial killer is on the loose.

Police are investigating whether two shooting deaths and multiple attacks on transgenders are linked.

“These cases, although not directly related at this time, do have some similarities the public needs to be aware of,” Maj. Vincent Weddington told reporters at a news conference Tuesday.

Muhlaysia Booker, 23, was fatally shot early Saturday. Booker was killed weeks after being assaulted by a mob in a viral video.

Police arrested Edward Thomas, 29, and charged him with assault and a possible hate crime. Thomas bonded out of jail and police say he is not linked to Booker’s shooting death.

In October 2018, a transgender was found shot to death in a vehicle parked in southeast Dallas, according to NBC News.

In April, a transgender survived after being repeatedly stabbed in south Dallas. Police have no suspects in those cases.

Two of the 3 victims got into a car near an intersection in the area of Spring Avenue and Lagow Street – just before the attacks, Weddington said.

All three victims were sex workers.