Accused North Texas Serial Killer Facing Additional Indictments

MCKINNEY (WBAP/KLIF) – Collin County District Attorney Greg Willis Announced on Tuesday Four additional Capital Murder indictments of accused serial killer Billy Chemirmir.

Chemirmir was convicted in the murder of Lu Harris in Dallas County, but is accused of stealing from, and killing, at least 17 other elderly women in North Texas.

“These indictments should serve as a reminder that every victim of a violent crime deserves to have their case investigated and prosecuted, and Collin County law enforcement and prosecutors will work every day to hold violent offenders accountable. I’d like to thank the Grand Jury for their diligent consideration of these cases, and I’d like to recognize the Frisco Police Department and the Plano Police Department for their investigative efforts that led to these indictments,” added Willis.

According to the Collin County District Attorney’s Office, the cases included in Tuesday’s indictments are victim Marilyn Bixler, age 90, murdered in Frisco on Sept. 17, 2017; victim Diane Delahunty, age 79, murdered in Plano on Dec. 3, 2017; victim Helen Lee, age 82, murdered in Frisco on Sept. 2, 2017; and victim Mamie Miya, age 93, murdered in Plano on Dec. 8, 2017.

At the request of the families involved in today’s cases, the District Attorney’s Office is releasing their joint statement:

“We the families and loved ones of Marilyn Bixler, Diane Delahunty, Helen Lee, and Mamie Miya are grateful to hear of today’s four additional capital murder indictments. These indictments are another step in holding Billy Chemirmir accountable for the full extent of his horrible crimes. We’d like to thank police and prosecutors for listening to us, and for their continued efforts to see that justice is done for all the victims and their loved ones.”

Chemirmir has been previously indicted in Collin County in five cases of capital murder and two cases of attempted capital murder. The cases remain pending awaiting the October 2022 trial of Chemirmir in Dallas County.