Billy Chemirmir is charged with capital murder of Lu "Kim" Harris, who was found dead in her North Dallas home Tuesday.
Plano police had been conducting surveillance on Chemirmir, 45, in Dallas when he was seen tossing items into a dumpster that ended up being a jewelry box containing a name, investigators said. Officers tracked that name to Harris’s North Dallas home where she was found deceased, police said.
The Dallas County Medical Examiner's office has not yet released a cause or manner of death of Harris.
Dallas Police obtained a capital murder warrant for Chemirmir. He was booked into the Dallas County Jail on a $1 million bond.
A source close to the investigation told NBC 5 Chemirmir has multiple victims. Sources said he posed as a home health worker or a maintenance man, targeted elderly women and used a pillow to smother them.
A source said many of the victims lived at the same senior living community and that the investigation could extend to other states.