(Portland, OR) -- A man is facing several charges including DUI in connection to a deadly hit and run crash in Gresham. The Multnomah County District Attorney's Office says 38-year-old David Thomas Haugen is being charged with manslaughter, DUII and hit and run for the crash that killed 21-year-old Zachary O'Leary late last month. Police say O'Leary was using a marked crosswalk at Northeast Halsey Street and 192nd Avenue November 23rd when Haugen crashed into him and continued on his way. O'Leary died at the scene.