Brazil authorities to investigate last year's killing of drug trafficker by police helicopter

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Authorities in Brazil are investigating last year's killing of an alleged drug trafficker in an operation that involved police spraying part of a Rio de Janeiro slum with machine gun fire from a helicopter.

Dramatic footage aired Sunday by the Globo TV network showed police shooting several bursts of bullets from the helicopter as it chased a car driven by Marcio Pereira. His bullet-riddled body is seen slumped inside the car. The incident took place May 11, 2012.

A press officer for the Rio de Janeiro Public Safety Department said Tuesday that an investigation is underway and the helicopter pilot has been temporarily suspended. Spokesman Pedro Dantas says the investigation will determine if police used excessive force and if proper procedures were followed.