Plot hole: Although it is true that CCTV-camera's are "everywhere", it is highly unlikely they are placed in churches under low angles (MacAvoy's Church) or that two separate ones are pointed at a dumpster in the middle of nowhere (Slade's first kill).
Hex
6th Mar 2010
The Tournament (2009)
3rd Mar 2010
The Tournament (2009)
Other mistake: At the gas station, Lai Lai's tracker picks up on two other contestants approaching but fails to show the position of Father MacAvoy, who is standing right beside her.