Late for the Wedding

The Senior Sleuths don't mind a little peace now and then, but after a long bout of nothing out of the ordinary, they're eager for some excitement. No one could've imagined it would arrive with such a bang. A mysterious explosion has rocked the assisted living community, disrupting life for everyone. Despite the stern warnings from authorities, one of the Senior Sleuths can't help but get involved.
This is their home, after all. Herman, always eager to root out the truth, ignores the warnings and hunts for answers. He's convinced the explosion was a ruse to cover up something far more sinister. But the other seniors aren't as eager to get involved. They're focused on Marcy and Lance's upcoming wedding. Without his usual sidekicks, can Herman track down the bomber and a missing veteran who no one else remembers?