By Jason Hanna and Nick Valencia, CNN

(CNN) -- Two Baton Rouge police officers involved in the 2016 shooting death of Alton Sterling are expected to learn this week whether they'll keep their jobs, as police prepare to release four more videos recorded the night of the shooting.

State authorities announced earlier in the week that Officer Blane Salamoni was justified in shooting Sterling outside a Baton Rouge convenience store, and that no charges would be brought against him or fellow Officer Howie Lake II.

But that's not the last word in the case, as city police leaders will determine by Friday, in disciplinary hearings, whether Salamoni and Lake violated any policies or procedures, Police Chief Murphy Paul said.

And after the decision, the department will release four videos yet to be made public -- footage that sources with direct knowledge of the investigation describe as "very graphic" and "disturbing."

The fatal encounter between the two white police officers and Sterling, a black man, helped spur renewed Black Lives Matter protests across the nation.

Previously released cell phone video showed Sterling, 37, pinned to the ground by the officers before he was shot on July 5, 2016.

Police said they believed Sterling was reaching for a gun. The Justice Department said in May that evidence couldn't prove or disprove that Sterling was reaching for a weapon, and a state report released Tuesday said that Sterling had a loaded .38-caliber handgun in his right front pocket.

As the officers await word on their future, Salamoni's attorney says he thinks department leaders decided to fire his client months ago, and won't be swayed by any arguments to the contrary that he presents in his hearing.

"No matter what evidence we give them, they're not going to listen. It doesn't matter what we present to them -- they're going to fire him," Salamoni's attorney John McLindon said.

That comment comes against a backdrop in which Paul's boss -- Mayor Sharon Weston Broome -- is on record as saying Salamoni should be fired. Even on Tuesday, she told reporters she hasn't wavered "on what I have said in the past."

"I will stand by what I have said," she said.

The hearings Paul said he and three deputy chiefs will preside over the hearings for Salamoni and Lake. He declined to say when the hearings would be held, other than they would wrap by Friday.

"I'm going to be looking at policy and procedure and the behavior of our officers, and if their behavior was consistent with the policy and procedures of the police department," Paul said Tuesday.

The state attorney general Tuesday released a report concluding the shooting was justified, 10 months after federal prosecutors determined they wouldn't file civil rights charges against the officers.

But the disciplinary hearings could focus on factors besides justification -- such as authorities' determination that Salamoni pointed a gun at Sterling's head early in the encounter, and while swearing, threatened to shoot him in the head if he moved.

That, for example, is a police policy issue, rather than a question of constitutional violations, the state report cites a use-of-force expert as saying.

'You'll cry' after seeing the coming videos, Sterling relative says

The killing gripped the nation in part because two videos taken by bystanders, each less than a minute long, were released publicly shortly after the shooting and captured the final part of Sterling's struggle with the two white officers.

But the police chief says he'll release four other videos after the officers' hearings: the officers' two body camera recordings; the store surveillance video; and dashboard camera video from a patrol car.

The woman who raised Sterling, Sandra Sterling, told reporters she's seen the unreleased videos -- and that they will spark more public outrage.

"When you see those other ... videos of Blane Salamoni killing Alton Sterling, you'll cry again," Sandra Sterling said. "And when you cry again, you'll be telling the Sterling family, 'I'm sorry.'"

In a roughly 30-minute surveillance video from the Triple S Convenience store, Sterling is seen at the front of the store before the shooting, sitting at a table and selling CDs, smoking cigarettes and listening to rap music, the sources say.

Authorities have said Salamoni and Lake went there after police received a 911 call from a man who said someone had pulled a gun on him.

According to the state report released Tuesday, Sterling refused to heed the officers' commands to put his hands on the hood of a car, and each officer reached for and tried to control Sterling's arms.

Officer threatened early to shoot Sterling in head, authorities say

When Sterling spun around and pulled his right arm away from Salamoni, Salamoni drew his gun, the state report says. The footage from Salamoni's body camera, sources with direct knowledge of the investigation said, show Salamoni at this point training his gun at Sterling's head.

Beneath the Skin: A CNN investigation

Salamoni yells and threatens to shoot -- though the state report and CNN's sources offer different accounts on exactly was said.

"Put your hands on the f*ing car or I will blow your fing head off! Put your hands on the car or I will blow your fing head off!" Salamoni says, according to the sources describing the video.

The state report quotes Salamoni this way: "Don't f move, or I'll shoot you in your f head."

A struggle, followed by the shooting

Sterling then complied, but eventually resisted Lake's attempts to gain control of his hands, the state's report reads.

Lake twice used a Taser on Sterling, with little to no effect. Salamoni eventually holstered his gun, tackled Sterling to the ground and tried to control Sterling's right arm, and Lake knelt and tried to control Sterling's left arm, the state report says.

At one point, the already-released cell phone videos show, someone -- Salamoni, according to the state report -- shouts, "He's got a gun!" In one video, an officer draws something from his waistband and points it at Sterling.

"If you move, I swear to God," Salamoni tells Sterling, according to the report.

At this moment, the state report says, Sterling was positioned in a way that concealed his right front pocket. The officers continue to try to control his hands.

"He's going for the gun," Salamoni yells, according to the state report.

The state report says Salamoni first shot Sterling three times in the chest, and then rolled off him.

Sterling sits up. As Lake yelled at Sterling to get on the ground, Sterling rolled away from Salamoni, who fired three more shots, this time into Sterling's back. Sterling's hands and right side are concealed from Salamoni's view, Louisiana Attorney General Jeff Landry said.

Lake removed a loaded .38-caliber handgun from Sterling's right front pocket, the report says.

Attorney general: Drugs may have contributed

In May 2017, federal prosecutors found there wasn't enough evidence to warrant civil rights charges against Salamoni and Lake.

The feds cited use-of-force experts who determined the officers' actions were reasonable under the circumstances -- including that the two used several less-than-lethal techniques before using force, and that Sterling struggled with the officers and failed to follow orders.

The Justice Department also said that evidence couldn't prove or disprove Salamoni's assertion that Sterling was reaching for a gun.

Landry said Tuesday that Sterling had illicit drugs in his system.

"Considering this, it is reasonable that Mr. Sterling was under the influence, and that contributed to his noncompliance," Landry said.

An autopsy indicated Sterling had cocaine, methamphetamine, hydrocodone, a marijuana ingredient, caffeine, nicotine and alcohol in his blood.

Sterling family attorney Chris Stewart said this week that every action was "initiated by the officers."

He also said Salamoni's threat to shoot Sterling in the head was illegal.

"That is not the behavior that any officer should have," Stewart said. "In our opinion, that is criminal."

Sterling's five children filed a wrongful death lawsuit last summer.