So, that girl was killed by a stalker who left his initial (E) on the wall. And his fingerprint. I know he was a stalker (blond, middle-sized) because the victim had been complaining about him in her diary and emails. I checked her address book for some names that started with E, and investigated a couple of them, but the fingerprint and description didn't match, and anyway, it wasn't likely to be someone she knew so I stopped wasting my time on that. I checked the surveillance cams in her building (her floor and the main hall), noted a few suspects, no real match. Also checked the cam at her work place, and in the street (I summarize : checking a cam's recording forced me to infiltrate the security room when it' was empty, identify the worker in their absence, sneak into the worker's home to find their password, return to the security room's computer, etc - a lot of investigations within the investgation). In the meantime another murder happened, same modus operandi. In the victim's emails, the doctor seemed to imply the victim was paranoid, so I also identified and checked the doctor's office in case he was deliberately obtuse and actually implicated. As the victim claimed to be harrassed, I also checked the last person who called her, in vain : again a long investigative process for a red herring. Anyway, it was a long investigation, my wall was covered with notes, mugshots, fingerprints, addresses and colored wool wires. I eventually asked around about some mugshots from surveillance cams, in the area where the images were taken, and one passer by identified an averege height man as some Enzo something. The first letter made him particularly interesting, but when I found his address, I realized I already had that location in my notes : from an Enzo in the first victim's address book. That first line of investigation, that I had given up on.
I went to his place and indeed his door knob was littered with the perpetrator's fingerprints. It was absolutely him. I could have avoided a second death if I had gone through all the elementary routine checks after the first killing.
So yeah, it's an epic game, sometimes frustrating but falsely frustrating : the clues are there, and usually redundant. There are some wonky gamey mechanics (citizens are very tolerant until they aren't and start gunning you down and then either instantly forgetting about you or never at all) and some odd AI (if you switch a light off -or on- when a local NPC wants it on -or off-, they will go switch it back right after you, but sometimes you get two NPC disagreeing about it and you can watch them passive-agressively flipping the lights off and on in turns for hours). And there's a semi-annoying hunger/thirst cycle with no real effect. And some very odd generated missions (go steal a document from a person about whom we only know their shoe size and blood type). But it's all work in progress. And still rich enough for a brilliant sense of emerging narratives.
A lot of fun so far.