Ex-MLB prospect beats dad, uncle & bystander to death with baseball bat engraved with his name

A former Major League Baseball prospect was convicted Wednesday of the 2015 first-degree murders of his father, uncle, and a bystander at the family’s California home. The Riverside County District Attorney’s Office said in a statement that Brandon Martin, 27, killed his disabled father and uncle Michael Martin, 64, Ricky Andersen, 58, and ADT alarm …