Fife businessman has been left heartbroken after his pizza van was completely destroyed in mysterious early morning blaze.Alastair Jack received a call at around 1:45am on Sunday telling him the converted horse box that housed Urban Flame had gone on fire.The 42-year-old launched the small family business just over a year ago and hoped it would be successful enough for him to give up his other offshore job.But the dad-of-two, who is the family breadwinner, has been left devastated after the