Prosecutors say a New York cardiologist has pleaded guilty to conspiring to have another doctor attacked following a professional dispute.

Nassau County prosecutors say Dr. Anthony Moschetto (muh-SHEH'-toh) offered an undercover officer $5,000 to have the man beaten and $20,000 to have him killed.

Moschetto was recorded on video giving the officer $500 and blank prescriptions as a deposit.

When investigators searched Moschetto's mansion in Sands Point, they found a cache of weapons hidden behind a motorized bookcase.

Prosecutors say Moschetto also hired an intermediary to set the other doctor's office on fire.

Moschetto pleaded guilty Tuesday to weapons charges, criminal sale of a prescription, arson and conspiracy to commit an assault.

His attorney declined to comment.

Two other men were also charged. One pleaded guilty. The other was acquitted.