Griselda Blanco was a high-profile trafficker in Colombia and the United States . Hide Caption She was also the mastermind , investigators say , of countless murders . She is believed to have been living a quiet life in Medellin . She was gunned down Monday .
Griselda Blanco was a high-profile trafficker in Colombia and the United States . Hide Caption She is believed to have been living a quiet life in Medellin . She was gunned down Monday .