Full Breakdown
Teenager Sentenced for Mother's Murder in Disturbing Hammer Attack
3/25/2026, 10:05:58 PM
Fatal Attack Details
Tristan Roberts, an 18-year-old from Prestatyn, has been sentenced to a minimum of 22 years and six months for the murder of his mother, Angela Shellis, a 45-year-old teaching assistant. The attack occurred on October 24, 2022, when Roberts struck his mother with a hammer and recorded the assault on a dictaphone. Mold Crown Court heard that Roberts had planned the murder, expressing his intentions on the social media platform Discord prior to the attack. He was found guilty of murder after pleading guilty at an earlier hearing.
The Nature of the Crime
The court was informed that the attack began the evening before Shellis's death, with Roberts recording a message stating his intention to kill her. During the assault, Shellis pleaded for help, asking her son to call emergency services. The recording captured a two-hour conversation in which she was coerced into wearing a balaclava under the pretense of seeking medical assistance. After leaving their home, Roberts led her to Coed y Morfa nature reserve, where he inflicted fatal blows to her head. Her body was discovered later that morning by dog walkers.
Background and Context
Roberts had a history of behavioral issues, including diagnoses of autism and ADHD. His mother had sought help for him, expressing concerns about his mental health and violent tendencies. In the weeks leading up to the murder, Roberts had posted messages online indicating a fascination with violence and misogyny, including references to "hatred of women." He had previously been arrested for possessing a knife and had a history of disruptive behavior.
Official Statements & Responses
Judge Rhys Rowlands, during sentencing, remarked on the horrific nature of the crime, emphasizing the betrayal of trust inherent in a son attacking his mother. He noted that Roberts appeared to revel in the control he exerted over Shellis. Family members expressed their heartbreak and confusion, with Shellis's sister, Sarah Gunther, stating, “The impact of your actions in taking Angela from us all is something we now have to live with every single day.”
Criticism & Opposition
Despite the tragic circumstances, there are concerns regarding the support systems in place for Shellis and her son. Denbighshire County Council has referred the case to the North Wales Safeguarding Board, but has not commented further on the assistance provided to Shellis in dealing with her son's behavior. Critics argue that more could have been done to prevent the tragedy.
Conflicting Reports & Gaps
While Roberts's mental health issues were acknowledged during the trial, medical experts concluded that he was not suffering from a significant disorder that would have impaired his judgment during the murder. This raises questions about the adequacy of mental health interventions prior to the incident.
Verbatim Quotes
- “You appear to have revelled in the control you exerted over your own mother.” — Judge Rhys Rowlands
- “All my mum ever did was love Tristan.” — Ethan Roberts, Shellis's older son
- “It is incredibly hard to express our feelings towards you now. There is anger, confusion, and heartbreak, but for me personally, there is still care there too for you.” — Sarah Gunther, Shellis's sister
This case highlights the complexities of familial relationships, mental health, and the tragic consequences of violence within the home.
