Police launch a murder investigation after a 75-year-old man is found dead in a home in Bolton, Greater Manchester. Multiple reports say the incident prompts the investigation into the circumstances of his death. A woman, aged 49, is arrested on suspicion of murder, according to the reports. She remains in custody while officers carry out inquiries. The investigation is described as an active murder probe, with authorities working to establish how the man died and whether other people are involved. Coverage across outlets attributes the arrest and the start of the investigation to police statements and local reporting, with the key details centring on the man’s age, the location in Bolton, and the arrest of the woman on suspicion of murder. No cause of death is stated in the provided summaries.