IMac went out and won't come back on

I ask this question on behalf of my father who doens't live in the same town as me. He was at his computer (iMac, 21.5 inch screen, OSX Mountain Lion 10.8.4) during a thunderstorm and it suddenly went out. He said there was a flash of light and then it went out. I told him to unplug it, re-start the power strip then try to turn it on which he did and it wont' come on. HIs land-line telephone is also out but, their carrier is AT&T and the internet is serviced by Time Warner. Does anyone have any idea what might be happening? Hopefully is computer didn't suddenly die. Thanks in advance :-)

Ouch, it sure sounds like the Mac died, is there an Apple Store or AASP where he'sat to look at it?

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