Apparently they knew eachother personally…

In response to the killing, public officials including Minnesota governor and former Democratic vice president nominee Tim Walz and Senator Amy Klobuchar, expressed dismay and offered condolences to the family. Walz said that he knew Thompson.[26]

It says on the wikipedia page.

I’m almost certain it’s not zero, I think I saw an article about that a few years ago. UHC, like a lot of companies, throws some money at every viable major politician in the state. That’s where we’re at with how fucked up US politics is.