Killed by a frying pan

When I was a boy, my father cashed in his retirement money and went into business with two supposed close friends of his.  One of them embezzled from the business and my father lost everything.  God didn't to choose to punish that thief the way God punished the evil acts of Abimelech, the son of the great Judge Gideon, after Abimelech murdered his brothers so that he could be king.  Abimelech ended up being killed in battle by a woman who dropped a millstone on his head.  We look at that age-old question: why does God let evil exist on Earth?  So, why didn't God punish my father's "friend" the way God punishes evil in the Old Testament?