A southern California woman is facing an additional charge of involuntary manslaughter after an 81-year-old man died from his injuries after being struck by the woman’s teen son while he was riding an e-motorcycle, prosecutors said on Friday. On 16 April, Tommi Jo Mejer’s 14-year-old son was riding a Surron e-motorcycle and doing wheelies when he hit Ed Ashman, according to prosecutors. Ashman, a former captain in the US Marine Corps, was walking home from his job as a substitute teacher at a high school in Lake Forest. He was critically injured and died on Thursday, and Mejer, of Aliso Viejo in Orange county, was charged with involuntary manslaughter as a result on top of a previous count of felony child endangerment. “This mother essentially handed her 14-year-old son a deadly weapon, and despite multiple warnings of the dangers, continued to let him illegally ride an e-motorcycle until he finally killed someone,” the Orange county district attorney, Todd Spitzer, said in a statement.…