Did you remove the battery and wait 5-10 min like others have said ? Does the phone turn on (even if it does nothing, does the screen light up or anything when you turn it on )?
If the phone turns on (with out doing anything) have you tried to enter bootloader mode ? (Remove battery for 5 seconds, put back into the phone, do not turn on, hit Volume down and end call at the same time, the phone should turn on with a rainbow colored screen).
If you get the rainbow covered screen, I would download and install an offical rom (assuming a Verizon Touch Pro 2)..
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These are the offical HTC/Verizon roms, download the newest one and install it, if you get your phone up and running then follow up with unlocking and custom roms if you want (just make sure you use one for a CDMA/Verizon TP2)
I didn't know you could "brick" a Touch Pro 2...after about 100 flashes of mine, it still is bullet proof..