An infamous drug cartel hitman who claims to have killed more than 800 people is the star witness in a trial for the murder of three US consulate workers.
Jesus Ernesto Chavez Castillo was extradited from Mexico to Texas for the Arturo Gallegos Castrellon who is on trial for the murders of two US consulate employees and a Mexican national who were gunned down in their vehicles in Ciudad Juarez in 2010.
The New York Daily News reports that Castillo admits to murdering more than 800 people - maybe more, he can't remember them all - on behalf of the brutal Barrio Aztecas Gang. The boss of the crime syndicate is the accused Castrellon.
Castrellon is accused of ordering the murders of Lesley Enriquez, her husband Arthur Redfels and Jorge Alberto Salcido Ceniceros.
Castillo says he sometimes beheaded the victims and sometimes dismembered bodies.
Castillo told the court he had agreed to testify against his former boss to atone for the wrongs he has committed in his life.