When the doctors and nurses are working on Officer Olena, the time is just after 12:00. When they pronounce him dead, the time is 1:12. When the doctor asks for the time after Olena dies, he is told 7:15.
Officer Olena is shown to be flat lined, yet his eyelids are moving, as if he is getting ready to wake up.
When the HPD officer shoots at the yellow Lotus after the driver that shot him took off, the car goes off the road and they show (very briefly) a spinning hubcap which appears to be a Mercury hubcap. The Lotus does not have hubcaps, it has mag wheels.