Hitman Chronicles: Signed, Mr. Hit:

After a botched hit, a lightning strike, a dead priest, and a conversation with a being named Sexy Rat, an injured hitman emerges from the shadows with a broken leg, a resurrected conscience, and an unforgiving memory. Everyone thinks he's dead. They're wrong.
As the Refund Squad scatters in fear after receiving ominous notes signed "Mr. Hit," the hitman quietly hunts them down, one by one, asking a simple, terrifying question:
"Have you asked for forgiveness?"
Along the way, he's haunted by d...