These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Harsher in Hindsight; Bigelow is killed with a poison that glows in the dark. In 2006, Alexander Litvinenko was murdered by having (non-glowy) radioactive material injected into him. (Law & Order: Criminal Intent combined both the film and the real-life events for their episode "30".)
Tearjerker: The entire film especially when it's revealed Bigelow really was just one tenuous loose end - he was killed because he inadvertently and innocently notarized a bill of sale for stolen iridium.