Powerless: A Superhero Novel

My name is Martin Molloy. I haven’t used my powers in almost two decades. I’ve been a night security guard for four years and not had a panic attack for nearly ten months.
Then my old teammate and best friend Vincent is murdered by another power. My carefully constructed solitude crumbles around me as the Police, the Powered Crime Agency and the rest of the team search for answers.
All I want is to find out who killed him without having to dredge up too much pain from the past, but when the super-powered killer comes after me, all I am left with are nightmares.