In the video, it definitely is a flashlight. Who knows if its the same thing he’s carrying in the hallway photo, but most likely is.
However, let’s play this for all its worth - they lie about everything so we can start or embelish rumors that harm her too.
I could make sense that it’s a flashlight since she is walking into a dark area and he holds it up right at the end of the video as if he were ready to turn it on. Too bad the video stops right there.