An 18-year-old man has been sentenced to life imprisonment for murdering his mother with a hammer at a nature reserve in Wales. Tristan Thomas Roberts was convicted of killing Angela Shellis, a teaching assistant, in what prosecutors described as a premeditated attack.

CCTV footage presented during the trial showed Roberts leading his mother to the Morfa area, an isolated nature reserve, before carrying out the fatal assault. The court heard that Roberts had previously held his mother hostage for hours before the killing took place.

Prosecutors alleged that Roberts had become involved in online activities that may have influenced his actions, though specific details about these claims were disputed during proceedings. The case raised questions about the potential influence of internet content on vulnerable individuals.

Angela Shellis was described by those who knew her as a devoted mother who worked as a teaching assistant. The attack occurred in a remote location, suggesting premeditation on the part of her son.

The sentencing brings conclusion to a case that shocked the local community. Roberts will serve a life sentence for the murder of his mother, with the court determining he poses a significant danger to public safety.