Mbaye Diagne, UN Observer

Mbaye Diagne was a Senegalese UN military observer under Lt. Gen. Romeo Dallaire's command.  Upon hearing of the Prime Minister's assassination on April 7th, 1994, he went to the PM's house and found her four children still alive.  Despite UN regulations against interference, he saved the four children and dozens (perhaps hundreds) others by ferrying them hidden in his vehicle to relative safety and using favors and UN credentials to pass through checkpoints during the next 2 months.  He was killed by shrapnel from mortar fire at a checkpoint on May 31st, 1994.

But when the genocide started, I saw him still rushing around but I didn't know what he was doing. I subsequently learned that he'd rescued the family of the prime minister, the children, and he'd hidden them in his house. I understand that he saved quite a lot of other people as well by driving through the front line, hiding people in his car, driving back through the front line and so on. … You could see he was never hanging around the car park like some of the some of the UN officers. He was always going out and doing things.  (Source.)

Wikipedia

PBS:  Ghosts of Rwanda, Memories of Capt. Mbaye Diagne