SPEEDBOAT killer Jack Shepherd is believed to be hiding among Brits abroad on the Med.

The show-off is on the run after his date Charlotte Brown, 24, died in a River Thames tragedy.

Her family last night urged holidaymakers in overseas hotspots to ring cops with any sightings.

The Sun has put up a £10,000 reward to help catch the coward, 30.

Speedboat horror victim Charlotte's dad warned her on-the-run killer last night: “Justice is coming.”

In an exclusive interview, Graham Brown, 52, told of his anguish at losing “perfect” daughter Charlotte, 24.

Callous fugitive Jack Shepherd, 30, is thought to be in hiding in an expat bolthole.

Charlotte was killed on a first date with him when his speedboat flipped at high speed.

He was trying to impress her with a boozy ride past London landmarks on the Thames.

Shepherd fled just before going on trial and was sentenced to six years for gross negligence manslaughter in his absence at the Old Bailey last week.

Brits holidaying in hotspots such as Spain, Greece and Turkey are urged to ring police or The Sun with any sightings.

We are offering a £10,000 reward to help catch him.

Last night civil servant Mr Brown, 52, said: “Those who know something need to examine their consciences. Call the police, or call The Sun, with any information you might have.

“I’m sure someone will make that call. Justice is coming, of that I’m certain.”

Shepherd managed to instruct his lawyers during the case while on the run. But it is understood cops hunting him have been denied details of his messages due to legal protection.

Scotland Yard is now working alongside the National Crime Agency in the global search for the coward.

A source said of the expat line of inquiry: “If you’re on holiday where there are lots of expats, have a think about the barman who just served you or that hotel worker you just met.

“Any sighting could lead to a vital breakthrough.”

Charlotte died of cold water immersion after his defective boat flipped in December 2015.

She had met the web designer, of Paddington, central London, but originally from Exeter, just hours before after they hooked up on a dating site.

Her family, including sisters Katie, 29, and Vicky, 31, are campaigning for a nationwide review of marine safety laws, including speed and drink limits, safety standards and compulsory life-jackets.

Mum Roz Wickens, 53, of Clacton, Essex, added: “Just thinking about how much she must have suffered that night is immense agony, permanently.

“I would urge anyone with any information to come forward and Sun readers to help force Shepherd to face the consequences of his actions at last.”