Seneca Co., N.Y. - Opening arguments begin today in Seneca County Court, in the mruder in the trial of a man who stand accused of killing his own son .
Authorities say Karl Karlsen staged the accident that killed his son Levi. Karlson contends a truck his son was working on slipped on top of him.
Karlsen is charged with second degree murder and insurance fraud in connection with the death of his son in 2008.
Police say He took out an insurance policy just days before Levi's death naming himself sole beneficiary.