Actor Alec Baldwin and a weapons specialist have been formally charged with involuntary manslaughter in the fatal shooting of a cinematographer on a New Mexico movie set, according to court documents filed by prosecutors Tuesday. Mary Carmack-Altwies, the Santa Fe district attorney, filed the charging documents naming Baldwin and Hannah Gutierrez-Reed, who supervised weapons on the set of the Western movie Rust. The charges came nearly two weeks after she first announced that Baldwin and Gutierrez-Reed would be prosecuted for what authorities have described as a pattern of criminal disregard for safety. Baldwin and Gutierrez-Reed maintain their innocence and have vowed to fight the charges. Halyna Hutchins died shortly after being wounded during rehearsals at a ranch on the outskirts of Santa Fe on 21 October 2021. Baldwin was pointing a pistol at Hutchins when the gun went off, killing her and wounding the director, Joel Souza. Prosecutors have said that Baldwin’s involvement as a producer and as the person who fired the gun weighed in the decision to file charges. Baldwin’s attorney Luke Nikas declined to comment Tuesday and referred to his previous statement on the case, in which he called the charges a “terrible miscarriage of justice” that he and his client would fight and win. “Mr Baldwin had no reason to believe there was a live bullet in the gun – or anywhere on the movie set,” the statement said. “He relied on the professionals with whom he worked.” Gutierrez-Reed’s attorney said they would release a statement later. The Screen Actors Guild, the actors’ union, previously criticized the choice to prosecute Baldwin, saying that Hutchins’ death was a “preventable” tragedy but arguing it was “not a failure of duty or a criminal act on the part of any performer”. In a statement, the union argued, “The prosecutor’s contention that an actor has a duty to ensure the functional and mechanical operation of a firearm on a production set is wrong and uninformed. An actor’s job is not to be a firearms or weapons expert.” Carmack-Altwies, the district attorney, told the Associated Press in a 19 January interview that the set was “really being run pretty fast and loose” and that Baldwin should have known there had been previous misfires on the set and that multiple people had brought up safety concerns. She added that Baldwin was the one who pointed the gun and pulled the trigger. Baldwin, also a co-producer on Rust has described the killing as a tragic accident. The 64-year-old actor said he was told the gun was safe and has sought to clear his name by suing people involved in handling and supplying the loaded .45-caliber revolver. In his lawsuit, Baldwin said that while working on camera angles with Hutchins, he pointed the gun in her direction and pulled back and released the hammer of the weapon, which discharged. Participants in the un-filmed rehearsal have given conflicting accounts of who handed the gun to Baldwin. The decision to charge Baldwin marks a stunning turn of events for an A-list actor whose 40-year career included the early blockbuster The Hunt for Red October and a starring role in the sitcom 30 Rock, as well as iconic appearances in Martin Scorsese’s The Departed and a film adaptation of David Mamet’s Glengarry Glen Ross. In recent years, Baldwin was known for his impression of former President Donald Trump on Saturday Night Live. Baldwin’s “mercurial, defiant, combatively emotional behaviour – which has been part of his presence as a performer and public figure – has been in evidence since the shooting,” Peter Bradshaw, a Guardian film critic, noted earlier this month. Baldwin “gave an emotional interview last August in which he blamed the armourer and the props assistant but declined to blame himself”, and, in December 2021, told George Stephanopoulos that he did not feel guilty about what happened: “Someone is responsible for what happened and I can’t say who that is, but I know it’s not me.” Prosecutors also said they will release the terms of a signed plea agreement with assistant director David Halls, who oversaw safety on the set. Halls has agreed to plead guilty in the negligent use of a deadly weapon, they said. Defense attorney Jason Bowles, who represents Gutierrez-Reed, said the charges are the result of a “flawed investigation” and an “inaccurate understanding of the full facts.” Baldwin and Gutierrez-Reed will be issued a summons to appear in court. Prosecutors will forgo a grand jury and rely on a judge to determine if there is sufficient evidence to move toward trial. It could take up to 60 days for decision. Hutchins’ death already has led to new safety precautions in the film industry.