A teenager from St Helens was last night detained under the Mental Health Act after a pensioner was found murdered in a town centre flat.
Police were called to an address in Borough Road at around 9.40pm on Friday (September 13).
The victim, 69-year-old David Walter Rimmer, was found in the living room of the property suffering from head injuries. Paramedics were called but the man was pronounced dead at the scene.
An 18-year-old has since been arrested on suspicion of murder. A force spokesman said the teenager is from the Newtown area St Helens.
Detectives had earlier applied to local magistrates for an extension to continue questioning the teenager. He was being held at St Helens police until Tuesday afternoon when a decision was taken to detain him under the Mental Health Act.
A force spokeswoman said: “Merseyside Police can confirm that an 18-year-old man arrested on suspicion of murder has been detained under the Mental Health Act for a period of 28 days to allow for medical assessment.”
Forensic officers are currently carrying out examinations of the flat, which has been cordoned off, and officers are carrying out house-to-house inquiries. A post mortem revealed an injury to the head as been given as the cause of death.
Witnesses should call CID on 0151 777 6804, or Crimestoppers on 0800 555 111.