Crusher

The day Finn Maguire discovers his father bludgeoned to death in a pool of blood, his dreary life is turned upside down. Prime suspect in the murder, Finn must race against time to clear his name and find out who hated his dad enough to kill him.
Trawling the sordid, brutal London underworld for answers, Finn exposes dark family secrets and faces danger at every turn. But he's about to learn that it's the people you trust who can hit you the hardest...

"'A fast-paced thriller with real heart’
Simon Kernick