A Seattle beer garden employee was found shot dead when the establishment opened the next morning while his co-worker, accused of pulling the trigger, turned himself in days later, claiming self-defense. Quusaa “Q” Margarsa, 25, was found dead inside The Growler Guys in Northeast Seattle by his fellow employees Saturday morning when they arrived to open up for the day, according to a police report obtained by the Seattle Times . Investigators said his co-worker, 20-year-old Lucas Logan, is accused of killing Margarsa after the pair had been hanging out at the bar after hours with an unidentified woman. Quusaa “Q” Margarsa, 25, was found dead inside The Growler Guys in Northeast Seattle by his fellow employees Saturday morning after his co-worker, Lucas Logan, allegedly shot him in self-defense. Quusaa Margarsa / Facebook After closing The Growler Guys around 1:30 a.m., Margarsa headed to Lava Hookah Lounge — later leaving with a man and woman he met there, friends told investigators.…