but he knew hillman she. was. going to school. the day a fire took place as the world's eyes turned to brazil and international outrage reached its peak over the fires here. leaders like french president a manual mccrone said president both sinatra needed to do more to protect the amazon considered a bulwark against rising temperatures and climate change. but both are now dismissed european leaders concerns saying they shouldn't interfere and without any evidence blamed foreign n.g.o.s. force you to assume that what this said is the world is looking to split a deal could have a greater so the problem was probably as you. eventually the government was forced to respond deploying the army across the amazon to combat the fires at the end of august. in nova progresso the presence of federal forces along with an investigation into the day of fire raise tensions and also for force. is there playing he. didn't get to you to keep you stuck with us. flyers like this were distributed on social media and around town saying that it does say i

. >> reporter: fbi special agents michael hillman and laurie gibbs were coordinating teams from the taskrent aspects of the case. >> you have to look at everything. >> so you decided to just divvy it up everyone could focus on their individual tasks? >> exactly. >> right, and some of these teams had 25, 30 people on them. and there was a team that looked at all of the victims and what they may have in common. >> reporter: they believed the killing of d.a. mike mclelland was linked with the shooting of prosecutor mark hasse back in january. but it was all one big collective hunch, until a tip came through that would confirm the connection. >> through the crime stoppers web-based tip line, we get a tip that claims credit for the mark hasse murders. >> reporter: the electronic message came in easter sunday night. it began, "do we have your full attention now?" >> "we" suggests more than one person. did you think maybe it's a group? >> in my thought i thought is it -- how big is this group? what is this group? is this some sort of anti-government militia group? is this white supremist? i --