When space shuttle challenger exploded were all astronauts kill at that time or did any survive the fall into the water and died then?

It is Possible that the Crew may have survived the Initial Shuttle Explosion, then died from the Impact. I shudder to think of that possiablity. I would rather think of all those Astronauts as Americas Space Heros. No Advancement into the Last Frontier Called Space did not come without a high cost. Remember those who died at Cape Canavarel the Gemini Mission. Let us not forget all the Russian Cosmonauts who died in their endeavours as well. When the US Air Force started finding ways to save Pilot lives by using an Egress System then we saw a dramatic down turn in Pilots lost. I think maybe we should find alterantive ways to save Astronauts lives as well.