The trial of Emanuel Samson, who is accused of fatally shooting a woman and wounding seven others at a Nashville church in 2017, officially began on Monday — with prosecutors releasing details about his alleged motives, including how he wanted to kill “a minimum of 10 white churchgoers.”

Emanuel Samson, who is black, was allegedly looking to pass Dylann Roof’s 2015 death toll in South Carolina, which was nine.

“The blood that 10 of your kind will shed is that of the color upon the RBG flag in terms of vengeance,” Samson wrote in a note left inside his truck before the shooting, according to prosecutors.

“Dylann Roof is less than nothing.”

Samson allegedly opened fire at the Burnette Chapel Church of Christ in Antioch with the intent of killing white church members and nobody else, since all of Roof’s victims were black, the prosecutors said.

“This state will prove beyond all reasonable doubt that on Sept. 24, 2017, this defendant, Emanuel Kidega Samson, went to the Burnette Chapel Church of Christ with the intent to murder a minimum of 10 white churchgoers,” said Nashville Deputy District Attorney Amy Hunter during opening statements. “You won’t have to take the state’s word for it, though.”

Samson allegedly attended the church before with his family and had been suicidal, according to his defense lawyer, Jennifer Thompson. She said his true intent was to kill himself. However, police say he confessed to the shooting after initially waiving his rights to an attorney.

In Samson’s arrest affidavit, authorities describe how he allegedly showed up in a tactical vest and mask — which had a clown smile on it. His massacre ended after an usher managed to attack and disarm him.

Thompson told jurors that Samson had been diagnosed with “schizoaffective disorder bipolar type” and post-traumatic stress disorder after suffering years of abuse as a child.

“What this case is about is a man who was very sad, very suicidal,” she said, “and he was looking to die that day.”

Samson faces 43 charges in connection with the shooting, including civil rights intimidation and murder. Most of the details of his case had been sealed pending the trial. It’s unclear when Samson is due back in court.

With Post wires