Violent cartel spreading its influence with money
Book review: Cartels and quarter horses
Feds Say Mexican Cartel Used American Quarter Horse Racing To Launder Money : The Two-Way : NPR
Drug cartel accused of laundering money through horse racing - Los Angeles Times
Equine Crime: A Horse Farm of a Different Color — FBI
2012: The Most Outlandish Stories from the Drug War in Mexico
Seized Mexico cartel horses fetch record sum at auction - BBC News
Senior member of Zetas drug cartel captured
Quarter-Horse Racing or Money Laundering? — Kentucky Journal of Equine, Agriculture, & Natural Resources Law