A man and a woman out for a stroll in Curridabat were accosted by two men on a motorcycle Thursday night. One man on the motorcycle pulled a gun and took a briefcase the male victim carried.
But when the robber approached the woman and tried to take her belongings, her companion produced a weapon of his own and killed the robber. Then he fired twice at the other robber, who also died at the scene.
The Judicial Investigating Organization is in charge of the case. The victim was not detained.
Agents also said that a home invader died at a Moravia dwelling Saturday when he and companions tried to stickup the occupants. A man inside the home shot one intruder fatally. A second intruder also was shot but not fatally.