Still, some experts wonder how aggressively authorities pursued the case.
In the days that followed his assassination, the local authorities pursued several lines of inquiry.
Government opponents say one way Egyptian authorities pursue suspects has been to pressure their female relatives.
He said the authorities were pursuing "a couple of leads - nothing solid."
The authorities pursued the teens, but we know how that ended.
States and local authorities had seldom pursued prosecution in lynchings.
It has become quite clear that every authority is pursuing a different model and taking a different approach.
While authorities pursued several theories, they failed to find a suspect.
As a revolutionary uprising among the workers begins, the authorities pursue the young comrade.
City officials have said Washington asked them to hold back while federal authorities pursued leads overseas.