Rockland County District Attorney Thomas E. Walsh II announced the sentencing of Constantinos “Dino” Doonan, 32, and Jo-Ann Haughey, 28, both of New City, for their roles in the brutal murder of Constantinos Mastakouris, an 85-year-old man who was the grandfather of one of the defendants.
Doonan was convicted of Murder in the Second Degree, a Class “A” felony, and received a sentence of 20 years to life in state prison. Haughey was convicted of Manslaughter in the First Degree, a Class “B” felony, and sentenced to 15 years in prison. Both sentences were handed down on December 3, 2024.
The heinous crime took place between January 29 and January 30, 2023, at Mastakouris’ residence on 45 Ruth Drive in New City. Acting together, the defendants strangled and choked Mastakouris to death. They then wrapped his body in a tablecloth, kiddie pool, and shower curtain before concealing it in a basement crawl space. Following the murder, the pair stole Mastakouris’ belongings, including his car, jewelry, and credit card.
District Attorney Walsh condemned the brutal nature of the crime, stating:
“Today, the defendants in this case were held responsible for their heinous crimes that resulted in the senseless murder of an 85-year-old man, who was the grandfather of one of the defendants. The killing of one’s grandfather is evil and an unimaginable act. The actions of the defendants have left their family completely shattered by this horrific act. The defendants are being held fully accountable for their crimes and will serve lengthy prison terms. I commend the investigation by the Clarkstown Police Department and prosecution by Deputy Chief Assistant District Attorney Dominic Crispino and Supervising Assistant District Attorney Sharleen Bailon.”
The case was meticulously investigated by the Clarkstown Police Department. The prosecution was led by Deputy Chief Assistant District Attorney Dominic Crispino and Supervising Assistant District Attorney Sharleen Bailon, whose efforts ensured justice for the Mastakouris family.