Neutronium

From publisher blurb: The Power of Peace The life of William Fehr, an actor, a husband, a father of three, came crashing down when his wife lost her arm, and the couple lost their children, during the NYC battle between Hecate and the founding members of the Sentinels. In an effort to avenge their slain children, William allowed himself to be bombarded by N-Ray particles to become Neutronium (PL 9), the Indestructible Man! Neutronium came to his senses when he had the Sentinels at his mercy and decided slaying them was not justice. In fact, he ended up joining them for a short time. Now, William continues to operate as both an action hero actor, and a part-time costumed hero.