Brian Jackson, 47, and Adam Jackson, 42 appeared in a federal courtroom in Houston for a detention hearing on Thursday. Just two days earlier, federal law enforcement took the brothers into custody at their homes in the Katy area.
They each face a count of assaulting, resisting, or impeding officers, civil disorder, and other related offenses, according to the U.S. Attorney's Office for the District of Columbia.
There were as many as 30 family members, friends, and associates supporting the Jacksons in court, where Magistrate Judge Andrew M. Edison called the pair a "threat to the community."
ORIGINAL STORY: 2 Katy brothers charged with assaulting officer during Jan. 6 insurrection, records say
Jacksons' supporters were openly emotional, with some family members crying and yelling "I love you" as the brothers were seen out of the courtroom.
Outside of the proceedings, supporters appeared to be combative with media members.
"I'd like you to know that they're innocent. I'd like you to know that they're family men and they deserve to be with their families," a woman who identified herself as the fiancée of one of the men said.
Adam Jackson cried multiple times in the courtroom as his attorneys talked about his six children and fiancée.
Extra security personnel was needed inside and outside the federal courthouse.
The Jacksons' defense team argued that the brothers may not be the same guys that the FBI was looking for when the agency released photos claiming to be of the pair. They pointed out that more than 20 friends and relatives had submitted letters to the court, pleading for both men to be released.
One picture allegedly shows Brian hurling a flag pole at officers, who were trying to hold back the crowd. In another picture, Adam is seen holding what appears to be a U.S. Capitol police riot shield.
Investigators said a voice is heard saying, "Adam got a g----- shield. stole it from the f---- popo" in a now-deleted video from one of the brother's Facebook pages.
An FBI agent testified Brian attempted to delete his online documentation and participation in the riot and sent several messages asking others to delete videos and messages he sent.
When contacted by phone Tuesday, a family member denied the allegations saying, "My family knows they're innocent and that's all that matters."
If convicted, Adam and Brian's felony assault charge could land them up to eight years in federal prison.
SEE ALSO: Where the Houston-area Jan. 6 arrests stand
Where do Houston-area's Jan. 6 arrests stand ahead of hearing?
For more on this story, follow Pooja Lodhia on Facebook,Twitter and Instagram.