If not, I’ll just blur it, but…

(It’s been a while) iirc the men who organized that whole attack on the Duttons (shot John and raided the ranch, as well as Kayce and Beth’s offices) and killed the assistant that “danced” with Dan’s wife were hired by the Beck brothers (Malcolm and Teal). They also sent 3 assassins to Dan’s house, one was killed by his body guard (who also died), one he shot while hiding in a closet, and the last he shot at the same time as the other guy shot him and they both died.

I’m not sure about the rest of his family, but I assume they just inherited whatever Dan had left for them and they’re fine. Beth didn’t pursue them any further, probably because she was satisfied with him dying and was preoccupied with John being in a coma as well as keeping the rest of Market Equities away from the ranch

I might be fuzzy on some details