Gwinnett police investigators now believe a park ranger shot last week at a Lake Lanier park was hit by accident as the suspect committed suicide, according to a news release. The department received a 911 call at about 10:15 p.m. Wednesday advising that U.S. Army Corps of Engineers Ranger D.P. Wright, 70, had been shot at the Lower Overlook area of Buford Dam Park at the south end of Lanier, according to Gwinnett Police Department Cpl. Jake Smith. Smith said Monday that Wright was likely shot with the same bullet that killed Qiana Moore, 34, of Woodstock.