I beat the game. I'm going through a few cases to get 5-stars on the few I missed and I just finished doing The Silk Stocking murder for the second time. As you go through these homicide desk cases again you'll notice a ton of things that point to the eventual killer (the temp bartender). He's mentioned in real quick throw away sentences and even Phelps will bring up how peculiar it is that all the women are murdered right after visiting bars.

by the second or third case i thought it was  temp bartender becuase he was mentioned at least twice

I agree. To me, this seemed like one of the weaker cases in homicide. It started off pretty interestingly, but ended abruptly. I'm supposed to believe the guy who planted all the evidence around the body and the guy I arrested are the same person? The brown Ford Coupe lead wasn't important enough to look into at all?    

For me when you get to the killers hideout you notice a bathtub full of blood and surgical which has blood all over it yet none of the cases match up which would lead you to believe he has killed more people yet everyone there just goes along ignoring the obvious. I also found the actually killer aspect to be a little weak there was no real motive or reasoning why he did it it was just like ' yeah here I am I did it'  I was expecting something a little more from it considering all the build up.

i think the homicide desk was 1-2 missions too long for my taste. i mean come ON, every victim is missing jewelry and has an affinity for visiting bars. still i was convicting random schmucks and husbands instead of connecting the dots. the mission where you finally get the guy makes up for it though. theres hardly anything cooler than chasing a trenchcoat-wearing shotgun-bearing serial killer through some dark corridors of a cathedral!!!

i think the homicide desk was 1-2 missions too long for my taste. i mean come ON, every victim is missing jewelry and has an affinity for visiting bars. still i was convicting random schmucks and husbands instead of connecting the dots. the mission where you finally get the guy makes up for it though. theres hardly anything cooler than chasing a trenchcoat-wearing shotgun-bearing serial killer through some dark corridors of a cathedral!!!

I know this post is like 9 years old but I found it cos I was kinda looking into the same thing- there's things in this case that don't make too much sense to me. Like why is the bloody scalpel and wooden box even there in the first place? Like you mentioned, assumingly it was planted there by Garrett Mason but that seems like a stretch considering there's only one way in that room and it's full view from Feeney's position at the front desk and generally the whole market. (I'm sure "it was planted" is the canonical answer anyways, but it has some flaws to me. Like did Feeney not go into that room at all during that entire day? That can't be true considering he was delivering at the bar earlier. He says he was delivering limes but I think it's obvious he was lying about delivering wine, and the room with the scalpel is the room where he keeps that stuff).

At first I thought maybe Feeney ran because the detectives found his secret stash of alcohol he was selling after hours, but he was pretty upfront about that during the interrogation right before you go looking around. He just blatantly says he sells it to make a buck after you doubt / bad cop him, so that would have to mean he knows the bloodied scalpel is there because the only reason for him to run would be related to that- he knows the detectives saw it and it looks bad so he fled, but /why/ does he have it? If it was planted, you'd think he would have just straight up mentioned it to help the detectives or even just thrown it away earlier.

Another thing that went no where in that case was the mention of the brown Ford Coupe. Both Angel and Feeney mention it and whoever was picking the victim up in that vehicle picked her up on two separate occasions- once from Angel's apartment and another time from Feeney's market. I feel like the fact it was mentioned twice (or at all, even) would have meant that it would have played a bigger role- had a stronger / more specific mention or actually lead to something- maybe even looking into it, but it's never even seen. I can't imagine it's Manson's car considering they picked her up on two separate occasions, plus- maybe they just didn't go into this detail -Manson has no car parked around his Church in the Quarter Moon Murders so unless that was just a missed opportunity, I feel like he just taxis to different bars when needed.

Idk, obviously I'm looking wayyy too much into it, but with the amount of detail they put into this game otherwise, this case feels really off.