Some more details:
https://www.news9.com/story/41224408/cousins-killed-in-rogers-county-double-homicide
“Family members tell me one of the victims has been dating the suspect’s daughter for the past two years, but this is the first time he met her dad...”
“Albert had never even met the man. Because he would always tell her that he didn’t want her being around black people,” said Albert’s aunt, Aleta Thomas.”
Reads like it was an honor killing(s). Hang ‘em high.