hardly,Mexican drug loads don’t give a crap about domestic growers
Cartels are also domestic growers...they have their own grow operations in the U.S. and do business with U.S. growers. Whether they were interested in another domestic grower here would depend on whether they had business connections to the grower or how competitive they were with each other.
Our drug trade inside and outside this country is connected through Cartels, their hooks are in deep in this country. The Cartel violence is here and happening more often.
I have no idea if these murders were cartel connected but they sure might be and it would not be as unusual as you seem to think.