A Mexican immigrant accused of shooting a man to death outside the victim’s apartment has been acquitted on murder charges, but was found guilty on lesser felony counts.The defendant, Gregorio Arenas, 29, was found guilty on charges of aggravated assault, coercion of witnesses, and reckless endangerment. The top charge of aggravated assault carries three to six years in prison. He was acquitted on the charge of first-degree murder, a crime for which he would have been sentenced to life in prison if convicted.