A Longview man has been found guilty of murdering his 19 year-old son. Today he was given his sentence. 44 year old Gerry Don McKinney was found guilty of murder by a Longview jury Wednesday for the shooting death of his son, Jeremy, back in August of last year. McKinney told police the 2 had a heated argument at the family home, and he accidentally shot his son with a 45-caliber pistol. In the end, jurors didn't believe it was accidental and sentenced him to 40 years in prison and a 10-thousand dollar fine.