article_snippet.sent: Moschetto,54, pleaded not guilty to all charges Wednesday.  
article_snippet.sent: The investigation began back in December, when undercover officers began buying heroin and oxycodone pills from Moschetto in what was initially a routine investigation into the sale of prescription drugs, officials said.
article_snippet.sent: During the course of the undercover operation, however, Moschetto also sold the officers two semiautomatic assault weapons as well as ammunition, prosecutors said.
article_snippet.sent: Moschetto allegedly told officers during one buy that Moschetto needed dynamite to "blow up a building.
article_snippet.sent: Moschetto later said Moschetto no longer needed dynamite because a friend was setting fire to a building instead.
article_snippet.sent: "fire damaged but did not destroy the office of another cardiologist whose relationship with Moschetto had soured due to a professional dispute," according to the statement from the district attorney's office.
article_snippet.sent: Moschetto allegedly gave an informant and undercover detective blank prescriptions and cash for the assault and killing of the fellow cardiologist, according to prosecutors.
article_snippet.sent: Moschetto also requested that the rival's wife be assaulted if the rival's wife happened to be present, authorities said.
article_snippet.sent: Moschetto was willing to pay $5,000 to have Moschetto beaten and put in a hospital for a few months, and then Moschetto said Moschetto would pay $20,000 to have Moschetto killed," said Assistant District Attorney Anne Donnelly, according to CNN affiliate WCBS.
highlights_snippet.sent: Moschetto, 54, was arrested for selling drugs and weapons, prosecutors say .
  
highlights_snippet.sent: Authorities allege Dr. Anthony Moschetto hired accomplices to burn down the practice of former associate .