Obvious killer is obvious (spoilers, duh)
When the random dude showed up a 2nd time to change the guys equipment in the middle of the investigation it was obvious he was the killer. There was absolutely no other reason for his character to exists at all. Really sloppy. Anyone else annoyed by how blatant this was? Why would this guy, who I admit is no A-lister but get's descent enough roles here and there, show up as the guy who fixes medical equipment in 2 scenes? And what would the point of the character be other than simply to establish his existence so we can be shocked about who he really is later? Usually in this sort of thing they'd give a character like this a secondary function in the story or plot so it isn't so obvious, there was absolutely no point in his being there at all. The details of his equipment needing to be replaced had no bearing on the plot at all.
What if a squirrel wants a sausage?