A Sabattus man is facing new charges stemming from last week’s deadly chain-reaction crash in Lewiston. Ryan Curran, 37, has been charged with manslaughter, operating after suspension and violating his probation, according to Lt. Derrick St. Laurent, a spokesperson for the Lewiston Police Department. Curran was speeding in a 2000 Ford F250 on Lisbon Street, near Scribner Boulevard, about 2:40 p.m.