Tuesday, April 27, 1999 Published at 18:15 GMT 19:15 UK
Hunt for Dando's 'well-dressed' killer
Jill Dando presented Crimewatch and Holiday
(Click here to see how the tragedy unfolded)
The man detectives want to question was spotted loitering in Gowan Avenue in Fulham, west London up to an hour before the killing at 11.30am on Monday. He was then seen running from the scene in the moments immediately afterwards.
Ms Dando, 37, who presented Crimewatch UK and Holiday, was shot once in the side of the head from very close range with a 9mm semi-automatic pistol, police told a news conference in London.
Speculation that a professional hitman was involved heightened after the execution-style manner of the killing was revealed, but police are keeping an open mind.
Detective Chief Inspector Hamish Campbell said a window cleaner had seen a man outside Ms Dando's home at about 10.30am.
He is described as being in his late 30s or early 40s, 5ft 11in tall, dark haired and wearing a suit.
An hour later and just before the shooting, nearby, another witness saw a similar man, wearing large black-framed spectacles which appeared too large for him.
Ms Dando, who had gone shopping in Hammersmith Mall after leaving her fiance's home in Chiswick at 10am, arrived home at 11.30am when she was shot.
A man sweating profusely was later seen at a bus-stop in Fulham Palace Road, but he is not thought to have got on a bus.
Experts said the pistol used - thought to be a Browning or a Tanfoglio - was the weapon of the professional criminal.
Handguns were banned following the Dunblane massacre, but hundreds are thought to be in circulation.
An obsessed fan or stalker is also a possibility. Ms Dando was allegedly stalked last year, but police said on Tuesday that she had made no recent complaints to them about a stalker.
Police are also scouring the river embankment near Bishop's Park.
Mr Campbell appealed for information from anyone who might have been involved in the illicit supply of the gun used in the shooting.
Ms Dando's murder prompted tributes from the Queen and Prime Minister Tony Blair.
And BBC News Online received more than 9,000 e-mails from users wanting to remember the star in the hours following her death.
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