Virginia authorities released a "death note" on Friday in which the Walmart manager who shot and killed six people at his store complained about workplace harassment and asked God for forgiveness.

After the shooting rampage on Tuesday, Andre Bing, an overnight manager at a Walmart in Chesapeake, Virginia, committed suicide.

The attack in a store packed with Thanksgiving shoppers came two days before the holiday and on the heels of a weekend shooting at a Colorado nightclub that killed five people.

Chesapeake authorities, 150 miles (240 kilometers) southeast of the US capital Washington, released a message titled "death note" on Friday, claiming it was found on Bing's phone. "Sorry God I've failed you, this was not your fault but my own," it said. "I was harassed by idiots with low intelligence and a lack of wisdom."

"I was just as guilty and failed my management team and everyone that ever loved me by convincing them that I was normal," the note said.

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Bing apologized saying, "Sorry everyone but I did not plan this. I promise things just fell in place like I was led by the Satan... I wish that I could have saved everyone from myself."

"May God forgive me for what I'm going to do."

Chesapeake city officials also revealed on Friday that Bing legally purchased the 9mm handgun used in the shooting the day before the attack.

Police reports revealed that six people were killed and four wounded when Bing entered a staff break room around 10:00 pm and opened fire.

It was the second mass shooting in Virginia this month.

Earlier this month, three University of Virginia football players were shot dead and two other students were wounded by a classmate after a school field trip on November 13.

So far in 2022, the Gun Violence Archive website has tracked more than 600 mass shootings in the United States -- defined as an incident with four or more people shot or killed, not including the shooter.