TO TONCH WELDON, it must have seemed like a good idea at the time. An open relationship with another woman and his wife joining in. Great, right? Well, no. Weldon was sentenced to life in prison without parole for murder his wife's lesbian lover, Amy Gephart on June 7, 2009. The 39-year-old Marengo, Iowa man's lawyer may appeal based on his intoxication. His mom cried when Weldon was sent away. His wife Amanda also shed tears. Amy's parents came too, but said 