Samaritan entered the business from the outside and engaged the suspects. He was not charged. Surprise?
http://www.ktvu.com/news/news/crime-law/good-samaritan-interupts-robbery-alleged-bandit-ki/nSWM4/
The Good Samaritan, who was outside the business but was associated with one of the victims, witnessed the robbery and got a gun out of his vehicle to try to stop the robbery, police said.Fearing for his safety when he entered the business, the Good Samaritan shot both suspects, who fled and were later taken to a hospital for treatment, according to police.
http://www.ktvu.com/news/news/crime-law/good-samaritan-interupts-robbery-alleged-bandit-ki/nSWM4/