BaldEagl, in the third column, it is what you were killed by. In your example, it was a P51D. The top chart shows the planes you were flying when you died and when you click on it, it shows the pilot(s) who wwas flying the P51DS at the time you were killed.
Right. I get that. But it would be nice to see that SkatSr killed me when i was in an F6F-5 by clicking on his name on the bottom chart. This becomes more important when there are multiple kills on you by the same guy in the same plane. For instance in my example above, 0LDemon killed me twice in his P-51D but to know what I was in when he did so I have to click each of the planes/vehicles I was in to search out his name among them. It turns out I was in two different GV's when he got his two kills on me. If I could click on his name I'd get:
Late War Tour 105
OLDemon kills on BaldEagl while flying a P-51D
plane/vehicle type Killed %
plane/vehicle type Killed %
It's just one more level of depth.