Is It an Anti-Mortem?

There are changes to the body that experts look at to try to determine is it truly anti-mortem, which is really hard to say for sure. Usually they'll say it's what's called perimordum at or around the time of death because you can't really say this person's alive or dead when this happened. And then there's truly times when you can say post-mortem after death because they can tell the body is not responding as if there's any living mechanism.