Special Operator 1st Class Joshua Graffam originally invoked his Fifth Amendment privilege before Navy Judge Capt. Aaron Rugh gave him immunity in order to compel his testimony.NAVAL BASE SAN DIEGO — A Navy SEAL sniper on Wednesday contradicted earlier testimony of fellow SEALs who claimed he had fired warning shots to scare away civilian non-combatants before Chief Eddie Gallagher shot them during their 2017 deployment to Mosul, and said he would not want to deploy again with one of the prosecution's star witnesses.Special Operator 1st Class Joshua Graffam originally invoked his Fifth Amendment privilege before Navy Judge Capt. Aaron Rugh gave him immunity in order to compel his testimony.Graffam testified that Gallagher was essentially justified in the shooting of a man he is accused of unlawfully targeting, stating that "based off everything I had seen so far ... in my opinion, they were two sh*theads moving from one side of the road to the other."Spotting for Gallagher in the tower that day, Graffam said, he called out the target to him and he fired. He said the man was hit in the upper torso and ran away.Graffam, who joined the Navy in 2010 and has been assigned to SEAL Team 7's Alpha Platoon since September 2015, deployed alongside Gallagher to Mosul in 2017, occasionally acting as a spotter for Gallagher when the SEALs were tasked with providing sniper support for Iraqi forces from two towers east of the Tigris River.Another SEAL, Special Warfare Operator 1st Class Dalton Tolbert, had previously testified under direct examination by prosecutors that, while stationed in the south tower of a bombed-out building in June 2017, he had observed Gallagher shoot and kill an elderly civilian."He ran north to south across the road," Tolbert testified on Friday. "That's when I saw the red mark on his back and I saw him fall for the first time. Blood started to pool and I knew it was a square hit in the back." Over the radio, he said he heard Gallagher tell the other snipers, "you guys missed him but I got him." Former SO1 Dylan Dille, who was also in the south tower that day, testified last week that he watched an old man die from a sniper shot on Father's Day. He said the date stuck out in his mind because he thought the man was probably a father.