Two corrupt government employees offer a third party who discovers one of their schemes a cut of the profits. When he refuses to accept their dirty money, he is promptly "taken care of."
Unfortunately, that fictitious trope is suspiciously close to reality in the strangulation death of Sgt. Logan Melgar, a green beret who was found dead back in June while he was participating in a special forces mission in Mali, where a cohort of US military "advisers" have been assisting French and local forces in rooting out terrorist groups affiliated with the Islamic State and Al Qaeda.
According to the Daily Beast, military investigators now suspect that two of Melgar's colleagues who were members of the elite Navy SEAL team six murdered him after he discovered they were illegally skimming money from a fund used to pay informants. The SEALS offered to cut him in, but Melgar declined, according to the Daily Beast's sources.
A few days later, he was found dead.