NASHUA, NH – A Nashua man who murdered his father as a young adult and later served time in prison is once again facing serious criminal charges after authorities say he attacked his mother in a violent domestic assault.

Police allege Ian Delmore, 40, is responsible for assaulting and strangling his mother during an incident that prompted her to call authorities out of fear for her life. Responding officers arrived at the residence, interviewed Delmore’s mother, and subsequently arrested Delmore at the scene.

Following an investigation, Delmore was charged with domestic violence-related strangulation and simple assault. Authorities say he is being held without bail as he awaits his upcoming court date.

This is not the first time Delmore has faced violent crime charges involving his own family. In 2007, at age 22, Delmore pleaded guilty to second-degree murder in the stabbing death of his father. The fatal confrontation reportedly began as a heated argument over a household project, escalating when Delmore’s father intervened, according to court records.

During the attack, prosecutors said Delmore stabbed his father repeatedly in the head, face, and back, ultimately causing fatal wounds that penetrated the brain. Afterward, Delmore turned the knife on himself, inflicting injuries to his own chest and abdomen. He then fled to a neighbor seeking help, and responding officers found him in a wooded area, covered in blood.

At sentencing, Delmore offered an apology, expressing regret to his family and acknowledging the pain and loss his actions had inflicted. The court imposed a 25-year prison sentence, with Delmore accepting a plea deal rather than proceeding to trial. He had previously signaled that he intended to claim self-defense and cite mental health struggles, as well as allegations of family abuse.

Despite the lengthy sentence, Delmore was released from prison earlier than expected, regaining his freedom last May. The circumstances of his early release have not been detailed by authorities.

The most recent allegations have revived concern within the Nashua community, as family members who once supported Delmore through his legal troubles now reportedly find themselves affected by a renewed cycle of violence.

Police continue to investigate the latest incident, emphasizing the importance of support for families caught in the crosshairs of domestic violence. Delmore, meanwhile, remains in custody pending further court proceedings.