A jealous husband who murdered his wife and her two children at their London flat has been jailed for life.
McEwan was described as a violent man
Veadon McEwan stabbed his wife Beverly and her son Junior, six, and strangled her 15-year-old daughter Donna in her bed at the flat in Wembley.
Croydon Crown Court heard he later told his brother, "I showed them no mercy".
McEwan, 52, an electrician who had a history of violence towards his two previous wives, was told he would not be released for at least 36 years.
Police were alerted to the bodies after McEwan phoned his brother and asked him to take him to hospital on 9 November 2004.
His brother alerted hospital staff that something might have happened to the family, and that they might be dead.
When police arrived at the flat in Middlesex House, Northwick Road, they found the three bodies and bloodstained clothing in a cupboard. McEwan was arrested in hospital later that day.
They never found out why he did it, or why the children - who were not his - were killed.
But they believed McEwan had convinced himself Beverly was having an affair and killed her in a jealous rage.
The trial heard he was a violent man who had probably beaten Beverly before.
Senior prosecutor Derek Frame described him as "an extremely dangerous man".
He added: "The horrific violence which Veadon McEwan used to murder Beverly and her children is beyond comprehension.
"They would have been completely defenceless against him and as he admitted after the killings, he showed them no mercy whatsoever. "
He added that the jury rejected McEwan's defence of diminished responsibility and accepted that "his intention was to kill and he knew exactly what he was doing".
Det Insp Steve Smith of the Specialist Crime Directorate added: "Today's result will not bring back the three lives that were needlessly taken by a jealous man, but I hope it is some comfort to their family that this violent man is now off the streets."