A picture is emerging of Santa-clad death sprayer Bruce Jeffrey Pardo's sorry life: a brain-damaged son he abandoned as a toddler, a beloved dog he lost in a divorce, and a murder plan gone awry.

A laid-off California man dressed in a Santa suit opened fire on a Christmas Eve party at his in-laws' house and torched the building. Eight people died. "Naughty" doesn't begin to cover it.