Just 48 hours after 20-year-old Adam was gunned down by masked men in what police think was a case of mistaken identity, his grandfather Harry Robinson passed away.

He had been suffering from cancer but his family says he had been coping well.

Adam's mum and dad are convinced the shock of his grandson's death just proved too much for him to bear.

That means the gang who burst into the Harehills home of Adam's sister and pulled the trigger have more blood on their hands.

As well as ending Adam's life when they pulled the trigger that night, they also sealed the fate of 70-year-old Harry.

These lowlifes must be caught before they have chance to claim yet another victim.

They have shown themselves to be cold, calculating killers who won't hesitate to murder in cold blood.

Yet, incredibly, detectives hunting Adam's attackers say they have little to go on more than a week after the shooting.

Anyone who knows anything about what happened that night must come forward and tell police everything they know.

Not only for Adam's sake but for Harry's as well.