Last time a convoy of weapons in Sudan was destroyed by a missile fired from an Israeli UAV. If these guys were smugglers then I am sure we probably did use the same tactic again. We have only the word of the Sudanese who these people were but if Israel was going to send a UAV all the way to Sudan to blow somebody up then intelligence must have had a good reason to think killing this guy would be essential to national security.
Jordan foreign minister says to speak with Kerry on Israel-Palestinian conflict (Reuters)
from the article: Sudan accuses Israel of carrying out air strike on Port Sudan