Sentence For Rockland Man Who Killed Ex-Lover And Her Mother

ROCKLAND COUNTY, NY — Kathleen Castor had an order of protection out against Robert Williams III, but it didn't stop the Hillcrest resident from walking into the home she shared with her baby and mother in Valley Cottage.

He brought a .40 caliber gun with him on May 26, 2020, and shot Castor, 27, and her mother Wanda Castor, 63. He left Castor's 1-month-old daughter Anastasia alive and alone.

SEE: Ex-Lover Who Spared Baby Murdered Woman And Her Mother

Williams, now 34, was sentenced yesterday to life in prison without the possibility of parole, Rockland County District Attorney Thomas E. Walsh II announced. He had been found guilty of the double homicide by a jury in April.

The sentence from Rockland County Court Judge Kevin Russo was:

• Life in prison without the possibility of parole for first-degree murder
• 25 years to life for two counts of second-degree murder
• 15 years for Criminal Possession of a Weapon 2nd
• 2-4 years for each count of Criminal Contempt 1st.

The judge also issued an order of protection for 50 years for Anastasia, who is now 2.

"On May 26, 2020, one-month-old Anastasia lost both her mother and grandmother due to the barbaric actions of the defendant. We hope that with Williams sentencing the Clarkstown community and the Castor family can begin the healing process," Walsh said.

He thanked the Clarkstown Police Department, and their Detective Bureau, Town of Ramapo Police Department, Spring Valley Police Department, Rockland County Sheriff’s Office, Westchester County Department of Public Safety, and Prosecutors from the Rockland County District Attorney’s Office for their work.

"The murders of Wanda and Kathleen Castor was a wanton disregard for human life," said Clarkstown Police Chief Jeffery Wanamaker. "I appreciate all those who worked to bring justice to the Castor family, especially our responding officers, Detective Bureau and the Rockland County District Attorney’s Office. We continue to remember the lives that were lost, and the family left behind from that day. Our heartfelt condolences are shared with the family and friends of Wanda and Kathleen.”

SEE ALSO:

• Valley Cottage Killings: Grandmother, Mother Identified
• Hillcrest Man Accused Of Killing 2 Valley Cottage Women