Dawn Tinston, whose brother Michael Whateley died after a forklift truck toppled over on to his car, will complete the jump to mark what would have been his 29th birthday.

Raising funds for the Brain Injury Rehabilitation Trust (BIRT) three months after the accident, Mrs Tinston said she was still coming to terms with his death.

She said: "Michael was gentle, thoughtful, kind and caring, but he was a great friend too. He was just an average 28-year-old who enjoyed socialising and going out with his friends, who have been incredibly supportive to our family since he died.

"The accident was a dreadful shock and we are still coming to terms with what happened. We still have a lot of questions to ask. Michael will be much missed."

Mr Whateley, from Far Cotton, died in January on a housing development in Banbury, in Oxfordshire, when the car he was driving was crushed by a nine-tonne industrial truck.

Three other people were injured and the Health and Safety Executive launched an inquiry to establish what happened, the results of which are yet to be published.

Mrs Tinston will now raise money for BIRT in his memory by doing a parachute jump in Hinton-in-the-Hedges on May 10, two days after Michael's birthday.

The 33-year-old, from Simpson Manor in Northampton, hopes to collect at least £1,000 in sponsorship. She said: "I am quite nervous about it, but I'm looking forward to it.

"My family have all been really supportive of me since I said I wanted to do the jump, and I wanted to raise money for BIRT because Michael died of head injuries and the charity can help people who suffer similar accidents.

"Michael and I had talked about doing a jump together last year, so it seemed fitting."