9/1/15 Yahoo News
Renato Sales Heredia announced that federal authorities arrested 27-year-old Javier Guerrero Covarrubias, the chief of gunmen for a drug cartel he did not name. Officials previously blamed the Jalisco New Generation cartel for the March 19 attack that left 10 dead in Ocotlan, Jalisco.
That attack was followed by another ambush that killed 15 state police officers and a rocket-propelled grenade attack that downed an army helicopter killing 10.
When federal police attacked a ranch where the gang allegedly was hiding out in May, 43 were killed.