Travis Kelce just got BODY SLAMMED on the goal line and I have no idea if that’s legal?

The Los Angeles Chargers and Kansas City Chiefs are tied 17-17 in the 4th quarter on Thursday Night Football. Overall, the game has been pretty boring but we did get one of the best body slams I have ever witnessed in the NFL.
Derwin James Body Slams Travis Kelce
Side Note: We also cashed a Mike Williams Anytime TD Scorer ticket. If you missed out, that’s on you.
Live Update: KC Pick Six. Now Leading 24-17.
Side Note 2: We cashed Justin Herbert INT. If you missed it, that’s on you.
Anyways, are you allowed to body slam someone like that in the NFL? I really thought that was illegal but there was no penalty called on the play. After doing a quick Google search, I couldn’t find anything either. Google’s automated questions/answers only provided me with the following:

So…I guess that’s a yes? Nice job Google. The one time my gigantic sports brain didn’t know an answer to a question and all you give me is a YouTube video from Savage Brick Sports titled “Body Slams”.
Regardless, it was badass, illegal or not.
Jason and Travis Kelce were just discussing how Jason got his ass kicked in Detroit, so I’m sure on next week’s episode we’ll hear more about it from Travis.