Cheri was hit and Aaron's body was dropped from the overpass both at 11:14 and Duffy's shots at the van take place only seconds after. But from Frank's point of view, Duffy's shots at the van take place after he drops the body from the overpass and several minutes of chasing his dog.
From Duffy's vantage point, when he sees Cheri get run over, Eddie isn't peeing out the window.
When Frank drops the book and shirt on fire in the sewer and gets the dog into the car, the flashlight is on the sidewalk. When he hops in the car, the flashlight is gone.
When Frank and his wife got back home, Frank does have a flashlight in his hand, the same which he has left on the sidewalk.
The book that gets set on fire is tossed out of the van lands farther from the corner then when Frank finds it.
For a story that places a good amount of emphasis on what the time is, Aaron's car states it's 7:10 as Frank drives to the overpass.
Cheri drives across the overpass back from Lloyds but ends up across the street from Frank after he pulls away. Frank drives straight and ends up at the overpass.
Buzzy asks Duffy to shoot her in her left arm as she is right handed. Just a few minutes before she throws him the keys to lock up with her left hand.