MEXICO CITY (AP) - Top Mexican drug cartel captures or killings
in recent years:  -Feb. 22, 2014: Authorities say Mexican and
U.S. officials capture the world's most powerful drug lord
Joaquin "El Chapo" Guzman in the beach resort of Mazatlan.
-July 15, 2013: Authorities in northern Mexico capture Miguel
Angel Trevino Morales, alias "Z-40," leader of the brutal Zetas
cartel.  -Oct. 7, 2012: Mexican marines kill Heriberto Lazcano
Lazcano, alias "El Lazca," a founder and top leader of the
Zetas. His body is later stolen from a funeral home. Trevino
Morales takes over the Zetas.  -Oct. 6, 2012: Mexican marines
arrest alleged Zetas regional leader Salvador Alfonso Martinez
Escobedo, suspected of involvement in massacres and the killing
of U.S. citizen David Hartley in 2010 on Falcon Lake, which
straddles the U.S.-Mexico border.  -Sept. 12, 2012: Mexican
marines capture purported top Gulf Cartel leader Jorge Eduardo
Costilla Sanchez, alias "El Coss." U.S. authorities had offered
a $5 million reward for his arrest