Filming halted on Alec Baldwin Rust movie after 'inexperienced 24-year-old gave ...

The young armorer who was responsible for the gun that killed cinematographer Halyna Hutchins on the set of Alec Baldwin new film Rust has been careless with weapons in the past, sources allege.

A source who worked alongside Hannah Gutierrez-Reed, 24, on an previous film set said she has a history of recklessness around guns.  

'She was a bit careless with the guns, waving it around every now and again,' the source told The Daily Beast. 'There were a couple times she was loading the blanks and doing it in a fashion that we thought was unsafe.'

Another source accused Gutierrez-Reed of loading a weapon on the pebble-filled ground and handing it to child actress, 11, without conducting a proper inspection. 

'She was reloading the gun on the ground, where there were pebbles and stuff. We didn't see her check it, we didn't know if something got in the barrel or not,' a source who worked with her set of the upcoming Nicolas Cage film, The Old Way, said.

The individual noted that the crew waited to film until Gutierrez-Reed had double checked the barrel for obstruction.  

A fellow Rust crew member referred to Gutierrez-Reed as being 'inexperienced and green,' alleging that there had been at least two incidents of guns being discharged on set before Thursday's fatal accident.    

Rust crew members claim there were several complaints made against the armorer on the set and that at least six 'fed-up' people had walked off the set prior to Gutierrez-Reed handing Baldwin the gun that killed Hutchins. 

The crew made their complaints directly to assistant director Dave Hall - who is named in the search warrant affidavit as the person handed Baldwin the gun that killed Hutchins and told him it was safe - and demanded all the discharges were documented. 

'All of us yelled at him, 'That better be on the production report, these guys are irresponsible and shouldn't be here,' a production source said.

'That should be automatic grounds for termination on a union film set, you should be gone. The first time that gun went off without telling anybody, that whole department should have been replaced, immediately. Clearly production thought better of it, decided to roll the dice and pay the ultimate price.'

A search warrant released Friday said that Gutierrez-Reed laid out three prop guns on a cart outside the filming location, and first assistant director Dave Halls grabbed the gun from the cart and brought it inside to Alec Baldwin, unaware that it was loaded with live rounds. 

'Cold gun!' shouted Halls before handing the gun to Baldwin, using the phrase to signal to cast and crew that the gun was safe to fire for the scene, the warrant said. 

Seconds later, filming a scene inside an Old West-style church, Baldwin apparently aimed towards the camera and pulled the trigger, accidentally killing Halyna Hutchins as she filmed him, and injuring director Joel Souza, who stood behind her.  

Sources on the Rust set have said the fatal incident that killed Hutchins, 42, and injured Souza, 48, was a result of production failings from top to bottom. 

They added that assistant director Halls, who handed the gun to Baldwin and told him it was safe, should have checked the weapon. 

'He's supposed to be our last line of defense and he failed us,' one of the sources on set said. 'He's the last person that's supposed to look at that firearm.'

A Rust production source told The Daily Beast that there were at least two previous incidents of guns being accidentally discharged by other crewmember on set before Thursday's tragic incident. 

The source described Gutierrez-Reed as 'inexperienced and green.' 

Gutierrez-Reed had previously admitted she wasn't sure she was ready for the job on The Old Way in an interview before filming started.

'I almost didn't take the job because I wasn't sure if I was ready, but doing it, it went really smoothly,' Gutierrez-Reed said in a podcast interview last month after leading the firearms department for The Old Way, starring Nicolas Cage - her first time as head armorer.

She also admitted in the podcast interview she found loading blanks into a gun 'the scariest' thing because she did not know how to do it and had sought help from her father, legendary gunsmith Thell Reed, to get over the fear.

It comes as the film crew revealed they walked off set hours before the fatal accident over safety fears after firearms were accidentally discharged three times - including once by Baldwin's stunt double who had been told the gun was not loaded, and twice in a closed cabin.

Neither Halls nor Gutierrez-Reed immediately returned messages from DailyMail.com late on Friday. Neither has been charged or named as a criminal suspect in the case, though a police investigation is ongoing.

The gun that fired the fatal shot was a vintage-style Colt revolver, DailyMail.com has exclusively learned.

After the shooting, the armorer took possession of the gun and a spent casing, which were turned over to police, along with other prop guns and ammunition used on the set.

Baldwin also changed out of the Western costume he was wearing, which was stained with blood, and turned it over to police.

The warrant does not reveal the model or caliber of the prop gun that fired the fatal bullet, but the film is set in the Old West of the 1880s and DailyMail.com has learned it was a Colt.

The warrant was obtained Friday so that investigators could document the scene at the

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