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RIO DE JANEIRO, Brazil — The Waze GPS app unknowingly lead a travel agent to her death.

Regina Murmura, 70, was traveling in Brazil with her husband when it happened: apparently the couple was expecting the app to lead them to a touristy avenue in Niteroi, a large city across the bay from Rio de Janeiro.

But police say the app led the couple on a small road into a notorious slum area and someone opened fire on the family’s car.

The husband managed to drive away unharmed.

Police don’t have an explanation for the murder, but say the area is loaded with drug gangs.

Waze, which is owned by Google, says it’s “incredibly saddened” by the incident.