**Spoilers**
Oh yeah...the knife from Hoss’ death...Jack had it...the gun that killed Benson...Oswin had it...the syringe...I dunno if it referred to the plant disease or whatever, (correct me if I’m wrong) but if Dave’s mom was a doctor of some sorts, it’s a stretch, but I’m not ruling out that’s she’s a possible part of this. Also I found it extremely strange that Oswin knew about Jack...not the fact that he exist and plot stuff...but it’s like he was “watching” over Dave...the friends didn’t find Dave until the gunshot and Jack conveniently escaped...I literally said I wouldn’t ask these questions in the last comment but I couldn’t help it :(