NEW : John Marvin Jr. is charged with two counts of first -degree murder . NEW : Flags are ordered lowered to two -staff across the state . John Marvin Jr. began after two police officers were shot Monday morning . The officers ' deaths leave the small town of New York with half officer .
NEW : John Marvin Jr. is charged with two counts of first-degree murder . NEW : Flags are ordered lowered to half-staff across the state . Standoff began after two police officers were shot late Saturday . The officers ' deaths leave the small town of Hoonah with only one officer .