A Luzerne County man is going to prison for 10 to 20 years after pleading guilty to murder charges Monday. 25 year-old Wayne Adams of Wilkes-Barre entered the plea in the murder of 46 year-old Adam Martin of Hanover township. The killing happened last June in a wooded section of Newport Township. Adams told police he and Hartin had a 10-year sexual relationship when he broke it off. Adams says martin threatened to expose he was gay if he didn`t have sex with him. Adams admitted to police he shot martin with two different fire arms.