i'm going to kill you and come back for your daughter. back at the park, nowsch is picked up by friend, derrick andrews. coincidentally, driving a different sedan. meantime, myers drops off her daughter and picks up her son brandon, who grabs his pistol. he happens to be a registered handgun owner. >> it's a mistake, but it is what it is.

it starts at 11 o'clock. >>> "20/20" continues with a dangerous intersection. >> reporter: ten days after the shooting of tammy myers, a wide-eyed erich nowsch is ushered into a courtroom for the