Re: I killed a PC.
Hmm. I think four or five of my superhero PCs have died, a few by accident. And I couldn't tell you how many PCs have died in my games. Mostly by accident.
Normally, if it's by accident, it's nice to offer a way for the PC to come back. Especially if it was some stupid death that was caused by dice.
One GM of mine brought back my character Nighthawk. He had been killed by a 5d6 KA that rolled all sixes by a different GM.
But the one GM had had Nighthawk embroiled in a long plot, and the last bit had been Nighthawk flying down to Rio to check out a lead and he had disappeared except for some blood and feathers in a hotel. (He was similar to X-man's Angel, but a detective sort. Ran the "Fly by Night" Detective Agency)
Apparently before this other game, we glossed over it with, there were some Ninjas and some other adventures. We'll get back to it...
To summarize:
Nighthawk had been kidnapped, and cloned. Clone was the one killed, but there were seven other clones. Wound up going thru some manhunter like stuff, and one of my other characters was in on the rescue of the original. (Much cooler story than the summary shows)
The other seven clones are still running about. The brain of the "dead" clone had been saved and then placed in a jar. Went insane, caused other problems.