One of the most feared jihadists in North Africa has been hunting Americans. Erin first heard about Algeria-born Mokhtar BelMokhtar while traveling on the Mali border last summer.
A Tuareg tribesman who accompanied Erin received a warning call, telling him he was in the area.
Now we are learning the United States had the chance to kill Mokhtar Bel Mokhtar a decade ago but missed the opportunity.
OutFront tonight: CNN's Chris Lawrence has the story.