Didn’t see the incident, but it would be interesting if ...
Bolling should take it to the Personnel Office and filed a formal complaint — that Rivera is causing a hostile workplace by threatening other News Corp employee(s) with physical violence during their on-air (and probably off-air) duties.
Hit (figuratively) the former attorney where it would hurt.
The threat, especially if on-air, should be more than enough for News Corp to have grounds to can/fire Rivera.
I’d like to see Geraldo fired and sent off to MSNBC where he belongs. Maybe FOX news would trade for him but they don’t have anyone they would ever want.