Combat vet has pertinent comments about Rittenhouse:

[Jedi Guy]

73. I don't think it's at all fair to characterize Grosskreutz as having "feigned surrender."

That implies he was trying to psych KR out and then kill him, which I don't believe was ever his intent.

That said, under cross-examination he did admit that he had his gun in his hand, raised his hands, and then inadvertently pointed the gun at KR again, at which point KR fired and hit him in the arm. That admission does play right into the hands of a self-defense claim.

“So when you were standing three to five feet from him with your arms up in the air, he never fired, right?” Corey Chirafisi, a defense lawyer, asked.

“Correct,” Mr. Grosskreutz answered.

“It wasn’t until you pointed your gun at him, advanced on him with your gun — now your hands down, pointed at him — that he fired, right?” Mr. Chirafisi said.

“Correct,” he said.

https://www.nytimes.com/2021/11/08/us/kyle-rittenhouse-gaige-grosskreutz-testimony.html