CNN is learning new details about another American who died fighting for the terror group ISIS.
A friend tells CNN that Abdrackman Mohammed is the second U.S. citizen killed in the fighting last weekend, along with Douglas McAuthur McCain.
A U.S. official says they are trying to confirm his identity.
Like McCain, Mohammed had ties to Minnesota.
CNN is also learning about McCain's childhood friend who was also killed fighting for extremists overseas.
Troy Kastigar is seen in a video trying to recruit others from Minnesota to join the terror group al Shabaab.
"If you guys only knew how much fun we have over here, this is the real Disneyland. You need to come here and join us and take pleasure in this fun. We walk amongst the lions. We sleep under the moon and the stars, they're our lamp. And the wind rocks us to sleep. He places so much tranquility and happiness in your heart when you're amongst these people here. And uh, we can't thank Allah enough."
The mother of Troy Kastigar talks to CNN's Jason Carroll about what may have led her son to join a terror group.