According to the affidavit, Halls said he did not check all cylinder chambers, but he recalled seeing three rounds in the cylinder at the time. (After the shooting, Halls said in the affidavit, Gutierrez-Reed retrieved the weapon and opened it, and Halls said that he saw four rounds which were plainly blanks, and one which could have been the remaining shell of a discharged live round.)[44] In the warrant, it is further stated that Halls announced the term “cold gun”, meaning that it did not contain live rounds.[42] Halls’s lawyer, Lisa Torraco, later sought to assert that he did not take the gun off the cart and hand it to Baldwin as reported, but when pressed by a reporter to be clear, she refused to repeat that assertion.[45]
It’s Wikipedia, but it matches what I’ve read elsewhere. He was told he had a cold gun. There is a division of responsibility and what’s described doesn’t match your assertion.