A Placer County jury on Monday found the 51-year-old guilty of killing his father-in-law, Gary Spohr, and severely wounding his mother-in-law, Wendy Wood, on June 5, 2021, at their home on the lake’s west shore. Wood received extensive rehabilitation but died a year after the shooting.

Prosecutors told the jury that Serafini snuck into his in-laws’ house while his wife and their two children were spending time with her parents on the lake and he waited four hours for his family