DENVER -- The man accused of fatally shooting his wife while investigators said he was high on marijuana edibles pleaded guilty to second-degree murder .. Richard Kirk, 50, had pleaded not guilty by reason of insanity, citing marijuana intoxication, in September to a first-degree murder charge in the death of his wife Kristine. Under terms of the plea, Kirk, who had been charged with first-degree murder, will be sentenced to 25 to 30 years in prison and fined $5,000 to $1 million. He will also give up parental rights to the couples' three children to Kristine Kirk's parents ... The...