Luis and Florinda Argueta were fed up, according to court documents. Their son, Joe Argueta, 19, had been feuding with another teenager and his friends who had been harassing the family for weeks, slashing their car tires and shooting at their house in Houston, the Harris County Sheriff’s Office and a lawyer for the younger Mr. Argueta said. Florinda Argueta, 39, hatched a plan: The family would stay up all night, wait for the teenager and his friends and “deal with them,” according to a report filed by a Harris County prosecutor.