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.
The private sector, like corporations? It happens to a degree but you’ll find connections to both intelligence agencies and organized crime pretty quickly. Just look into Coca Cola’s assassinations of union leaders in Colombia if you want an example.
There is a fairly significant amount of planning that goes in to these, but it doesn’t have the “cool” of fiction. Killing in reality is brutish and horrific.