The lights in the bar change from red to blue in between shots.
Lucker is a fugitive escaped from a mental clinic. The police are beginning a massive manhunt for him, and have starting points from where his victim's bodies were found (he never leaves that general area). Yet he still manages to stay in an apartment room for a week without leaving, or without the police showing up. Several people in his immediate vicinity have seen him, and the authorities surely have photos of him. If Lucker were to stay in the same place the whole time, the police would have most definitely found him within that week.
It is mentioned that John Lucker cut his own throat while being transferred to a mental hospital. Despite this, he has no scar and he is able to talk perfectly fine, even though he could've hit a vocal chord.