You know the type. High security, weeks or months of stakeout, sniper three blocks away…
The hitman sorta things I recall from the news are either planned and executed by national intelligence agents or some savage gunning and running from hired brutes, but never the variant with sophistication and private sector.
Because if it does happen even infrequently, it would be unlikely that not at least a few had a media leak or some upset spouse exposing it.