What if the threat was told to the alleged victim through someone else. Is that still a threat?

Yes. A threat can be made through a third party. It does not matter if you never intended for the person you were threatening to hear the threat. In some cases, you may still be charged if the intended victim never even knows about the threat. All that is necessary are the words being said that may be seen as threatening to cause the death or injury to a person, or to burn, destroy, or damage property, or even threatening to injure or kill an animal or bird.