The strange case of Ezequiel Crawley

I received a letter today from the LAPD requesting my assistance in a multiple murder case that they have been unable to solve. The murders have taken place over the past few months at an old abandoned place, that no one want to come, and all evidence points to a possible satanic cult as the culprit. The LAPD has exhausted all leads and have now turned to me for help in solving this case. Move: WSAD / LEFT JOYSTICK Interaction: E / SOUTH BUTTON Aim (Gun needed): ARROWS / RIGHT JOYSTICK Shoot: SPACE / RIGHT TRIGGER Heal: T / LEFT SHOULDER Files: I / NORTH BUTTON Delete Save: Start / ESCAPE Game...