CHILE-OBIT-MANUEL CONTRERAS

SANTIAGO, Chile — Manuel Contreras, who headed the feared spy agency that kidnapped, tortured and killed thousands during Chile's dictatorship, dies in a military hospital while serving a combined sentence of more than 500 years for crimes against humanity. 

COLORADO SHOOTING

CENTENNIAL, Colorado — Twelve jurors fail to agree on a death sentence for Colorado theater shooter James Holmes, prompting shocked sobs from victims, police officers and his own mother. The former neuroscience graduate student will instead spend the rest of his life in prison for mass murder.

PRESIDENTIAL RACE-GEORGE P BUSH

George P. Bush, the 39-year-old land commissioner of Texas, tries to use his rising star status to help his father, Jeb, become the third Bush to win the White House. 

ARGENTINA-PRESIDENTIAL PRIMARIES

BUENOS AIRES, Argentina — Cristina Fernandez isn't on Sunday's presidential primary ballots, but Argentina's two-term populist leader known for fiery rhetoric and withering critiques of opponents has dictated the tempo of the campaign to choose her successor. 

PRESIDENTIAL RACE-REPUBLICANS

ATLANTA — Billionaire presidential candidate Donald Trump's refusal to say he would support the Republican's eventual nominee should it not be him, grabbed the top headlines from the first debate of the 2016 campaign, overshadowing some of the party's biggest stars and creating space for some new faces to shine.