In pictures: All you need to know about the case involving Hollywood actor Alec Baldwin

Prosecutors are set to dismiss an involuntary manslaughter charge against Alec Baldwin in the fatal 2021 shooting of cinematographer Halyna Hutchins on the set of the Western film 'Rust'. They alluded to new revelations in the investigation while cautioning that Baldwin has not been absolved.

A follow-up investigation will remain active and an involuntary manslaughter charge against Hannah Gutierrez Reed, weapons supervisor on the film, remains unchanged, prosecutors said.

The development comes as a boost for Baldwin, best known for his roles in 'The Departed', 'Glengary Glen Ross', among other movies. A few months ago, the actor was confronting the possibility of a years-long prison sentence.

Baldwin was pointing a pistol at Hutchins during a rehearsal when it went off, killing her and wounding director Joel Souza. Baldwin has said the gun fired accidentally and he did not pull the trigger. An FBI forensic report found the weapon could not have fired unless the trigger was pulled, however.

When the manslaughter charges were announced in January, Santa Fe District Attorney Mary Carmack-Altwies said the case was about equal justice under the law and accountability in Hutchins’ death on the sets of 'Rust' (pictured above), regardless of the fame or fortune of those involved. She said the Ukrainian-born cinematographer’s death was tragic — and preventable.

A new legal team took over prosecution of Baldwin and Gutierrez-Reed in late March, after the original special prosecutor appointed in the case resigned.

When word of the dismissal came, Baldwin (seen in a skit as former US President Donald Trump) was at Yellowstone Film Ranch on the set of a rebooted 'Rust' production. Preparations for filming were underway at its new location in Montana, 18 months after the shooting shut it down, a representative for Rust Movie Productions said.