- Video report by ITV News Correspondent Neil Connery
The family of Charlotte Brown, who died after a speedboat crash, have said there is "no hiding place" for the fugitive killer Jack Shepherd.
Mr Shepherd, 31, is still on the run after he was sentenced to six years imprisonment for manslaughter by gross negligence in his absence last summer, after vanishing before his Old Bailey trial.
Ms Brown, 24, was killed after the boat he had bought to "pull women" flipped into the icy waters of the River Thames during her first date with Shepherd in December 2015.
Her father, Graham Brown, mother Roz Wickens and sister Katie, will met Sajid Javid on Tuesday to seek assurances that everything possible is being done to bring on-the-run Shepherd to justice.
Mr Brown said: "There can be no hiding place for Jack Shepherd. No one should give support, assistance or encouragement to him other than to do what he should have done in the first instance and hand himself in and take responsibility for his actions."
"The family will not rest, we will not tire until justice is done and Shepherd is held to account for the loss of our beautiful daughter."
The family were assured by Mr Javid that "all efforts and steps are being taken" and the "manhunt is given the necessary resources and priority it requires".
When asked about speculation of the possible location of Mr Shepherd being Turkey or Georgia, Mr Brown said agencies will not speculate but "are following a number of leads."
In a statement, Mr Javid said: “Charlotte’s family are understandably heartbroken and distraught following this awful tragedy. I have taken a personal interest in this case and am determined to ensure Jack Shepherd faces justice.
“I told the family we will strain every sinew and explore every option to bring them the justice they deserve as soon as possible.
“The Metropolitan Police and National Crime Agency are doing all they can to track down Mr Shepherd. If anyone is aware of his whereabouts they should report it immediately.
“What is clear is that Charlotte’s family have suffered enough. That is why I am repeating my plea for Mr Shepherd to give himself up.”
The family also want to know what can be done to obtain digital forensic evidence from web designer Shepherd’s contact with his lawyer, which could help to pinpoint his location.
Shepherd’s solicitor Richard Egan has previously denied "protecting a fugitive" despite helping him to appeal against his conviction while on the run from the law.
In December, he was given permission to challenge his conviction, sparking an outpouring of public anger, with Ms Brown’s family accusing Shepherd of making a mockery of justice.
Ms Brown’s family’s meeting with the Home Secretary in the House of Commons was arranged by Communities Secretary James Brokenshire, their local MP for Old Bexley and Sidcup
"In seeking this meeting for the family I want to ensure that the full efforts of our law enforcement agencies are being used to arrest Shepherd," he said.
"It is unacceptable that Charlotte’s family still have not seen the justice they rightly deserve.
"There can be no hiding place for this man and we must be utterly resolute in seeing that Shepherd pays for his crime."