And you took the word of a known terrorist organisation? Do you really think the same group that has murdered thousands of Somalis is not above lying if it fits their goal to overthrow the federal government?
This is the way they closed the case - everybody found out "their findings" with this post including the girls family that was waiting for 3 months:
In the statement, where they are denying her murder, they literally threatened to kill other government employees with the same fate she suffered, so they wanted her dead too, but they were not the ones who killed her.