An 80-year-old man has been stabbed to death at his home in east London, sparking a murder inquiry.
Albert Wright, known locally as Bert, was found on the floor of his home in Trelawney Road, Hainault, with multiple stab wounds at 2355 GMT on Friday.
A Metropolitan Police spokesman said officers had gone to the address after a call from the victim's son.
Mr Wright was pronounced dead at the scene. The "violent attack" is thought to have happened on Friday evening.
The 80-year-old is believed to have been out in his car on the day of his death and returned home at about 1730 GMT.
He is thought to have been attacked between 1800 GMT and 1900 GMT on Friday following reports of a disturbance during this time.
Det Ch Insp John Macdonald said: "This was a really violent attack on an 80-year-old man at this home.
"It is not clear at the moment what the motive is.
"Nothing has been taken from the property and there is no evidence of a forced entry.
"Bert was a popular resident of Hainault and there is nothing in his background to suggest why anyone would kill him.
"I would urge anyone who has information about who may have done this to come forward, it was a cowardly attack and whoever did it is not worth protecting."
A post-mortem examination showed Mr Wright died of multiple stab wounds.
A 48-year-old man was arrested and bailed until March in connection with the death.