Who's killing former US Senators?

Two dead Republican former senators from the South dead within two days and both from gunshot wounds. One was Republican, while the other was a Democrat who switched to Republican.

Are they unrelated? It would be a very odd and extraordinary coincidence. It is an interesting turn, nonetheless, and no matter what the truth happens to be, someone is going to spin this for political gain, while others will try to sweep it under the rug because its narrative will get in the way of doing business…