Youre skipping the first two words where it says “DA says”.

Again, the headline makes it sound as if Luigi has already been found to be the killer, which he has not.

The article could most certainly directly quote the DA saying that “Luigi is a murder”, but the headline really needs to be accurate by saying:

“DA says 40 UnitedHealthcare execs got bodyguards, and one dyed her hair after the accused, Luigi Mangione, allegedly killed CEO Brian Thompson”

Journalistic integrity matters.