YUMA, Ariz. (KYMA) - Opening statements in the trial of a Yuma man accused of murdering his own son got underway Wednesday. The prosecution is saying 38-year-old Daniel Harris was intentful when he murdered his own son, 24-year-old Michael Patrick Reiter, in September of last year. Meanwhile, the defense is arguing that it all happened in the heat of the moment as they claim the victim was inappropriately touching an underage family member, lead…