On July 4 , 1999 , Colburn and Hugh Thompson co-chaired the Stonewalk Project which organized and led the physical pulling of the one ton granite , memorial stone for Unknown Civilians Killed in War from Sherborn , Massachusetts to Arlington National Cemetery . In March 2012 , the Dover-Sherborn Press in Massachusetts published a column by Colburn commenting on the comparisons between the recent civilian massacre in Panjwai , Afghanistan and the My Lai massacre
massacre in Panjwai
Kandahar massacre
Lawrence Colburn