Killing of Antônio Vinicius Lopes Gritzbach, 38, former First Capital Command member, spawns number of theories

Police investigating a brazen murder at the arrivals area of Brazil’s main airport are pursuing at least three lines of inquiry in their attempt to track down the killers – and the possible masterminds of the shocking crime.

Antônio Vinicius Lopes Gritzbach, 38, was leaving São Paulo international airport on Friday afternoon when two hooded men jumped out of a car and fired a hail of bullets. The brazen attack, captured on security cameras , marked a dramatic escalation of criminal violence in the country.