Lowell Housing Authority official's career path followed Cambodia horrors

By Dennis Shaughnessey,dshaughnessey@lowellsun.comLOWELL -- Tha Chhan's life journey has taken him from the Killing Fields of Cambodia to the executive offices of the Lowell Housing Authority.Chhan, 45, was recently promoted to division director of Leased Housing Programs at the LHA. As a young boy, he witnessed first-hand the atrocities and horrors that took place in his homeland. He lost family