Crusher (Crusher #1) by Niall Leonard

WHEN HE LOOKED AT ME AGAIN HIS COLD SMILE HAD CRACKED, LIKE ICE OVER A DEEP, FREEZING BLACK TORRENT.

'I NEED TO KNOW,' I SAID.
'WHO SENT THAT GUY TO KILL MY DAD, AND ME?'

The day Finn Maguire discovers his dad bludgeoned to death in a pool of blood, his dreary life is turned upside down. Prime suspect in his father's murder, Finn must race against time to clear his name and find out who hated his dad enough to kill him.

Scouring the sordid London underworld for answers, exposing dark family secrets and facing danger at every turn, Finn is about to learn that it's the people you trust who can hit you the hardest. . .