One Facebook account said Huber was running at Kyle Rittenhouse, the teen accused in the killings, with his skateboard when he was shot.
"I heard he was trying to save somebody from being shot," Seebeck said.
The criminal complaint against Rittenhouse says Huber approached Rittenhouse, who was on the ground. Huber had a skateboard in his right hand and reached for the teen's gun with his other hand.
What was he doing laying on the ground if he is joyfully killing people?
Two Kenosha County men were killed and another was wounded Tuesday night in a shooting during civil unrest over the shooting of Jacob Blake.
Kyle Rittenhouse, a 17-year-old self-described militia member from Illinois, has been charged with homicide. He faces a first-degree intentional homicide charge and five other charges. Under Wisconsin law, Rittenhouse is charged as an adult, and he would face life in prison if convicted.
Charges filed Thursday in Kenosha County Court in a complaint detail how Rittenhouse used an AR-15-style rifle to shoot and kill Joseph Rosenbaum, 36, and Anthony Huber, 26, and injure Gaige Grosskreutz, 26, shortly before midnight along Sheridan Road, where protesters went after being expelled from Civic Center Park during clashes with law enforcement.