A Florida man is facing first-degree premeditated murder charges after he allegedly shot dead his father-in-law after the man reportedly slapped his mother-in-law. Shaun Simon, 42, has been arrested and jailed after he was accused of shooting dead Bill Toth in Seminole County. The incident allegedly occurred on Tuesday around 11:30 p.m in the Markham Woods neighborhood where Simon lived with his father-in-law, mother-in-law, and his wife, according to WESH. According to court records, Toth’s reportedly worsening dementia was causing friction inside the house. Making matters worse, Toth’s wife reportedly was suspicious that he was not being faithful. Toth’s daughter told deputies that on Tuesday night, her father and mother were arguing about their marriage. Toth allegedly slapped his wife in view of his daughter. She says she told her husband, Simon, about the incident, after which Simon confronted Toth, ClickOrlando reports. Shaun Simon, 42, of Sanford, Florida, was arrested and charged with first-degree premeditated murder relating to the shooting death of his father-in-law, Bill Toth (Seminole County Sheriff’s Office) When Seminole County Sheriff’s deputies …