They have occurred in the center of the capital, Guatemala City, mostly by citizens, angry with crime and criminal impunity.

CENTERFORSECURITYPOLICY: Guatemala: A security challenge

Guatemalan President Otto Perez Molina says prison gangs are behind the murder on Wednesday of a prison governor in the capital, Guatemala City.

BBC: Guatemala prison director 'killed by prison gang'

After weeks in hiding, anti-virus software company founder emerged publicly Tuesday in Guatemala's capital, hundreds of miles from the Caribbean island in Belize where his next-door neighbor was found dead.

CNN: STORY HIGHLIGHTS

Guatemalan police are investigating the murder of two girls aged six and 12 whose bodies were found dumped on a street in the capital, Guatemala City.

BBC: Guatemala shock as two murdered girls found on street