There's no justice in football

With reference to few last team tournaments (WC, Euro).
Group stage. 4 teams. 6 matches.

Let's analyze two margin cases.

Case One, scores:
Black - White 1:0
Red - Yellow 1:1
Black - Red 1:0
White - Yellow 0:0
Black - Yellow 1:0
White - Red 1:1
1. Black 3 9 3-0-0 3:0 +3 next round
2. Red 3 2 0-2-1 2:3 -1 next round
3. White 3 2 0-2-1 1:2 -1
4. Yellow 3 2 0-2-1 1:2 -1
2 points are sufficient for Red to promote!

Case Two, scores:
Black - White 1:0
Red - Yellow 2:0
Black - Red 0:1
White - Yellow 1:0
Black - Yellow 2:0
White - Red 1:0
1. Black 3 6 2-0-1 3:1 +2 next round
2. Red 3 6 2-0-1 3:1 +2 next round
3. White 3 6 2-0-1 2:1 +1
4. Yellow 3 0 0-0-3 0:5 -5
6 points are insufficient for White to promote!

Two assassinations

Two major events in history of USA presidency.

First is very mysterious [more].
Nov 22, 1963

Many suspicions: why bodyguards had left president's cadillac? why the driver is looking back exactly second before the shot? what are doing two women staying on the left side of the car?

Second, happened 18 years later. President fortunately survived.
Mar 30, 1981