“A Lake County dentist acted in self-defense this weekend when he shot and critically wounded his estranged wife, who was coming at him with a pickax, according to the Lake County Sheriff’s Department. Chief Deputy Sheriff James Bauman said Dr. Don Johnson, who operates Willow Tree Dental in Lakeport, does not face charges following the shooting of his wife, Margaret Johnson, during an incident at his Kelseyville home late Friday. … Don Johnson told investigators that after he had gone to bed, he heard a woman screaming outside the home. He said he reached for a handgun and was calling the Sheriff’s Department when he heard the sound of glass breaking at the rear of the house. He said that when investigating the sounds, he saw his wife entering the house armed with a pickax. He told investigators he fired one shot, she fell to the floor and he returned to the telephone to complete his call to deputies.” (05/04/08)