(CNN) -- The tens of thousands of dollars in donations that George Zimmerman has received are expected to be discussed at a court hearing Friday in Florida, his attorney said.
The hearing was originally scheduled to discuss issues about the unsealing of Zimmerman's criminal file, but the donations could overshadow that issue.
The attorney for Trayvon Martin's family says Zimmerman should be back in jail because during a recent bond hearing he failed to tell a judge he had $204,000.
"They tried to portray themselves as indigent that they did not have any money," said Martin family attorney Benjamin Crump. "We think the court should revoke his bond immediately, and he should be held accountable for misleading the court."
Zimmerman, who is charged with second-degree murder in the fatal shooting of unarmed 17-year-old Martin, has been given about $204,000 from supporters, his lawyer Mark O'Mara said Thursday.
The donations will be discussed at Friday's hearing, O'Mara said.
O'Mara said on CNN's "AC360" that Zimmerman told him of the donations Wednesday as they were trying to shut down his Internet presence to avoid concerns about possible impersonators and problems with his Twitter and Facebook accounts.
"He asked me what to do with his PayPal accounts, and I asked him what he was talking about," O'Mara told Anderson Cooper. "He said those were the accounts that had the money from the website he had. And there was about ... $204,000 that had come in to date."
O'Mara had said earlier this month that he believed Zimmerman had no money. "I think he's indigent for costs," he said, adding that Zimmerman's relatives had few assets.
Zimmerman, 28, was released Monday on $150,000 bail, 10% of which his family put up to secure his release. He is accused in the February 26 death of Martin, who was African-American.
Critics have accused Zimmerman of racially profiling Martin and unjustly killing him. Zimmerman said he shot Martin in self-defense.
Asked whether knowledge of the money might have made a difference to Judge Kenneth Lester Jr., who presided at Zimmerman's bond hearing, O'Mara said, "It might have."
O'Mara continued, "I'm certainly going to disclose it to the court tomorrow -- coincidentally, we have a hearing."
Crump said Zimmerman's failure to reveal that he had the money shows that he is being dishonest.
"If his testimony at the bond hearing is any indication of what is to come, then the lying has already begun," Crump said.
O'Mara said he was prepared to "deal with any fallout," but predicted Lester would not feel misled. "I told him what I knew at the time, which was exactly what I was aware of."
The money has been placed in a secure account since O'Mara learned about it, he said, adding, "Nobody's touching it until we figure out how to handle it."
But criminal defense attorney Mark Geragos said Lester might not react benignly. "I know a lot of judges who would remand the guy back into custody immediately," he said. "If you've got more money stashed in an account and you could just pay the bond and be gone, that gives a lot of judges concern."
Though the account has been closed, O'Mara said he intends to open a legal defense fund for Zimmerman. "I've had dozens, hundreds actually, of people wanting to donate," he said.
O'Mara, who said he charges $400 per hour for family law cases, estimated Zimmerman's defense costs could reach $1 million. "You can really go through a lot of money on a case like this, with the intensity of it," he said.
Although details of the shooting remain murky, it is known that Martin ventured out from the Sanford home of his father's fiancee and went to a nearby convenience store, where he bought a bag of candy and an iced tea. On his way back, he had a confrontation with Zimmerman, who shot him.
Zimmerman had called 911 to complain about a suspicious person in the neighborhood, according to authorities.
In the call, Zimmerman said he was following Martin after the teen started to run, prompting the dispatcher to tell him, "We don't need you to do that." Zimmerman pursued Martin anyway but then said he lost sight of him.
According to an Orlando Sentinel story later confirmed by Sanford police, Zimmerman told authorities that after he briefly lost track of Martin, the teen approached him. After the two exchanged words, Zimmerman said, he reached for his cell phone, and then Martin punched him in the nose. Zimmerman said Martin pinned him to the ground and began slamming his head onto the sidewalk, leading to the shooting.
Police have said Zimmerman was not immediately charged because there was no evidence to disprove his account that he'd acted in self-defense. A police report indicated he was bleeding from the nose and the back of his head.