When I lived in Sandy Ego for 21 years this sort of thing happened a couple times. The first was when I was in the Navy, and lived in the North Park neighborhood. A commercial airliner crashed 3 blocks from my house.
The second involved a Miramar-stationed A-4 Skyhawk that crashed in the industrial park where I was working, just three blocks away (Sorrento Valley).
The community of Sandy Ego has had a lot of tragedy to deal with in the last couple of years...God bless them.