How to separate digitizer (and glass) from front bezel?

I have a replacement touchscreen for this laptop (Toshiba Satellite U50T-A10-F), but the original is bonded somehow to the front bezel. I can see some tape protruding from a hole in the bezel, so I think it's adhered by some sort of tape.

The bezel has no screws, clips or any other means of securing the touch screen glass.

How can I debond the tape? Would immersing it in warm water suffice? I do not want to damage the bezel, as I cannot find any replacements.

Many thanks!