John Luper murder: Daughter's appeal on 12th anniversary

John Luper was attacked while walking his dog and dragged back to his home in Alwoodley

The daughter of a man who was murdered by robbers said she is still "broken and crushed" by her father's death.

John Luper, 57, was killed during a raid on his home in Alwoodley, Leeds, in February 2004.

He was found the next day by his wife and daughter who managed to escape after being tied up by masked men.

Speaking on the 12th anniversary of her father's murder, Liza-Rose Luper, 32, said: "Please help me find the murderers."

'Heart torn out'

Mr Luper was attacked while walking his dog at about 23:20 GMT on 16 February and dragged back to his home in Sandmoor Drive.

The thieves tied up his family and the au pair before taking cash and jewellery worth about £100,000, including a rare Cartier watch.

A post-mortem examination found the businessman died of asphyxiation.

Liza-Rose Luper said she felt like her heart had been 'torn out'

At a press conference earlier, Ms Luper said she wanted justice for her father's death.

"Every day of my life I think of him and it's bad enough having your father taken away at such a young age, but the way he was taken, it's a lot and I need help, I need people to help me," she said.

"A father is a daughter's first love and I feel like my heart has been torn out, broken and crushed. Please help me find the murderers."

Criminal fraternity

West Yorkshire Police said the force was determined to find Mr Luper's killers.

Detectives are also keen to hear from anyone who may have been offered the stolen watch, which was one of only four sold in the UK at the time.

Detectives are appealing for anyone who was offered a Cartier watch which was stolen in the robbery

Det Supt Simon Atkinson, who is leading the investigation, said: "Although 12 years have now passed, our resolve remains as strong as it was on the first day of the investigation.

"We are still convinced that there will be people out there, most likely in the criminal fraternity, who know who was involved in Mr Luper's murder."