Conversation so far:
What happened in 2012?
He entered the T44 classification men's 100 metres, 200 metres and 400 metres races, and the T42-T46 4 x 100 metres relay.
did he win any of them?
In the 200-metre competition, Pistorius established a new T43 world record of 21.30 seconds in his heat on 1 September, but he was defeated in the final.
who defeated him in the final?
Alan Oliveira of Brazil.
Pistorius took silver, and then created a controversy by complaining about the length of Oliveira's blades.

Question: what happened with the controversy?
Self-contained rewrite: what happened with Oscar Pistorius and the 2012 Summer Paralympics controversy?