What a BS story! They were varmint hunting and went after a wounded yote that had been called in. And from the looks of it the yote was yearling!
Not sure where this is, but if its an eastern coyote, unless you have a small dog or cat as a pet, they aren’t much of a threat to anything. A very small unattended child might be a threat, but they are all over where I live, and in the entire history of the state of PA there has only been 1 confirmed human death attributed to a coyote.