Gunmen killed Benjamin LeBaron and brother-in-law this week in northern Mexico . `` There are no leaders here , or we are all leaders , Security camera at toll booth captured images of two suspects , news agency says . The gunmen were wearing masks when they entered the tollbooth, according to a statement from Mexico's Attorney General's Office. Note reportedly found that says killings were retribution for drug arrests .
Gunmen killed Benjamin LeBaron and brother-in-law this week in northern Mexico . Security camera at toll booth captured images of two suspects , news agency says . The gunmen were wearing masks when they entered the tollbooth, according to a statement from Mexico's Attorney General's Office. Note reportedly found that says killings were retribution for drug arrests .