dr. anthony j. moschetto allegedly had the office of another doctor torched and tried to have the doctor hurt or killed .
moschetto allegedly hired an undercover cop in a failed attempt to carry out his biddings .
investigators who went to moschetto 's home in long island found a secret gun room accessible through a motarized bookshelf .
` he had enough weapons to provide a small army means to wreak harm , ' said police commissioner thomas krumpter .
moschetto faces a maximum sentence of eight to 25 years in prison .