THE family of a terminally ill schoolboy say they have been left "devastated and heartbroken" as he passed away two days after completing his final wish to take his girlfriend to the school prom.

Jak Trueman's inspirational story helped to raise more than £42,000 or charity in the past week.

The 15-year-old was suffering from a rare form of blood cancer called gamma delta T-cell lymphoma.

Thousands have paid tribute to the young Rangers fan who kept his promise on Saturday to take long-term girlfriend Hannah Boyd, 14, to the prom at Livingston Football Club.

The West Calder High School pupil, with the help of pain relief, made it to the school prom organised at the last minute after doctors told him he was dying and he was applauded by emotional classmates.

His mother Allison Barr Alison Barr, of Mid Calder, broke the news of his death on his Facebook page, saying: "Devastated and heartbroken to say my beautiful boy's gone to Heaven."

She added: "God bless. Jak I am the proudest Mummy ever xxxxx Simply the best xxx."

Long-term girlfriend Hannah posted four hearts on the Facebook page after hearing the news that he had passed away.

The youngster had been documenting his life and treatment on social media.

Since he was diagnosed with cancer last August, he had chronicling his life on the Jak's Journey Facebook page with the help of his mother, sister Aimie and girlfriend.

He was in line for more treatment until scans showed early last week the cancer had spread throughout his body.

His mother previously said they had been living "minute by minute, hour by hour" desperate for him to improve.

She added: "The prom was about my boy and Hannah. He managed to make the evening for ten minutes through wonderful courage and determination.

"Jak and Hannah are exceptionally close and I think it is absolutely magical that the school brought the prom forward, what they have done this for both of them.

"It is overwhelming what the school has arranged."

After the event he wrote a message saying: "I would just like to make a massive apology for me only turning up and then having to go again.

"I was gutted and really sad as I never spoke to anyone, but I took really unwell really quickly as I had been lying in bed for three days without hardly moving.

"Thank you to everyone who organised it and came along, even just knowing it was all happening for me makes me smile."

He played as goalkeeper for the Mid Calder Colts under 16s until this season. The team have decided to retire the number one jersey - which Jak wore throughout his time at the club - in tribute to him.

The teenager's battle against cancer and determinedly positive outlook capture the hearts of many in West Lothian where he lived and beyond.

The Jak's Journey page attracted more than 34,000 Likes and highlighted Jak's stay at the Royal Hospital for Sick Children in Edinburgh and Yorkhill Hospital in Glasgow over the past few months.

It also detailed the teenage goalkeeper's love of Rangers, and his meetings with former Ibrox stars Nacho Novo, Neil Alexander and current goalkeeper Cammy Bell.

He was visited by players from Celtic, Hearts, Hibs, Edinburgh Rugby and the cast of the musical Wicked.

Despite his illness, Jak raised more than £35,000 for Leukaemia and Lymphoma Research in less than a week which he hoped will set up Team Jak to offer additional support for youngsters battling cancer.

"A phenomenal amount for my phenomenal boy - making things a little easier knowing others will benefit," Mrs Barr said.

The teenager and his family found out on January 23 that his cancer had spread throughout his body and medics decided not to pursue any other treatment.

At the time, Jak wrote: "This is the saddest day of our lives yet but I am going to fight the pain and get as many days/weeks/months/years I can get. They can't give me a timescale to how long I have.

"I am so sorry to give everyone this horrible news but there's no other way to put it.

"I would like to thank all the doctors, nurses and everyone who has helped me over the past six months, they have tried their best for me."

He had been due to attend the League Cup semi-final at Hampden but was forced to pull out and watch the game at home on television.

A charity football match will be held in his honour on Sunday at Livingston FC Stadium, with a lineup including Celtic legend Frank McAvennie, Hearts goalkeeper Neil Alexander and former Rangers players Nacho Novo and Charlie Miller.