What do the terrorists want?
Recognition from mainstream society!
Enough living space!
Enough sources of financial funding!
Mountain Eagle is not really clear about the identity and origins of this so-called Death Angel, but according to Kobe's description, this guy is an important figure placed by ISIS in the outside world to showcase ISIS's presence while also raising funds.
If the Ebola virus was really done by Death Angel hired by France, then it really hits Death Angel where it hurts the most...
ISIS definitely wouldn't mind taking the blame for the Ebola virus, or they might even extort Merck Company and Glanstrock Group together before the real action takes place.
Then they would use the conference issue to mobilize the power of the United States Department of Homeland Security...
Brad Russell is not important at all; what matters is that Death Angel can use this guy to indirectly inform the outside world that he has VX nerve gas in hand.
