Washington casino-goers where left shocked when a stranger stabbed a fellow gambler to death at a table in a “completely random” attack, according to a report. The Auburn Police Department said it happened around 1:30 a.m. on Sunday at the Muckleshoot Casino Resort. Officers found the 29-year-old victim with a stab wound to the neck. First responders attempted life-saving measures but he died at the scene. Police say the victim, who was not identified, was standing at one of the tables and the suspect walked up behind him and stabbed him in the neck. Detectives do not believe the victim and su…