Mac defender security update, macbook pro no longer boots up

I applied the security update and then tried to reboot my macbook pro.  Black screen, doesn't reboot.  I tried to start up in single user mode, reset the PRAM ... and nothing.  My macbook pro is now a brick.  Wow.  Good thing I applied a security update for something I would never be stupid enough to click on in the first place.
Any help would be appreciated...

Greetings,
The security update is software only.  It has no impact on the hardware of the computer.
Do you get a boot chime at startup?
Do you hear / feel fan movement or any other evidence of activity from within the case of the computer?
Reset the SMC and then test: http://support.apple.com/kb/HT3964
Try plugging the AC Adapter (3-prong not the 2-prong) into a different power outlet.
Try running the computer with the battery out if your model allows removal of the battery.
If the issue persists after you follow the above steps, you may wish to make an appointment with a Mac Genius at an Apple store, contact AppleCare via phone, or contact an Apple Authorized Service Provider for assistance.

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