Dando was gunned down on the doorstep of her London home in 1999, and now investigative reporter Mark Williams-Thomas has vowed to find her murderer.
During today’s instalment of the ITV show, Thomas spoke to a former professional killer who suggested he knew who shot the newsreader but couldn’t elaborate for fears his life would be in danger.
While looking at images of several suspects who have been linked to the case, the anonymous figure said: “It was definitely someone professional. They are definitely highly dangerous, I’d say.”
He added: “One stands out to me, but I wouldn’t identify that person. I couldn’t because it’s very dangerous, they would come after me.”
Mark Williams-Thomas launches investigation into Jill Dando's death on This Morning
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I wouldn’t identify that person, they would come after me
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Thomas also stressed that he’d never seen a case where so much information hadn’t been followed up.
Speculating as to why the TV personality was targeted, Thomas pinned it down to her work on Crimewatch.
Jill Dando was killed outside her London home in 1999
This Morning spoke to a hitman who claimed to know Dando's killer
“From their point of view they might perceive Crimewatch was putting their relatives friends away,” he said.
“The key is for Jill’s family and friends, we need to solve this.”
This Morning airs weekdays at 10.30am on ITV.