Thirty years ago Wednesday, the massacre of six girls and one woman at La Cruz de Alajuelita above San José, Costa Rica set off a chain of gruesome killings that remain unsolved.
As a serial killer who has murdered eight impoverished women near Costa Rica's capital remains on the loose, police are trying to come up with answers and leads that can point them in the direction of their suspect.
Costa Rica police arrested a suspected serial killer early Wednesday morning in Hatillo, a southern San José suburb. The man is suspected of killing seven homeless women since April.