the watched actor that terminated
the Terminated message was derived from that the remote node hosting the watched actor was detected as unreachable
is false when the Terminated message was not sent directly from the watched actor, but derived from another source, such as when watching a non-local ActorRef, which might not have been resolved
When Death Watch is used, the watcher will receive a Terminated(watched) message when watched is terminated. Terminated message can't be forwarded to another actor, since that actor might not be watching the subject. Instead, if you need to forward Terminated to another actor you should send the information in your own message.