The widow of the Pulse nightclub shooter is back in Orlando and pleaded not guilty to the charges against her on Wednesday morning at the federal courthouse in downtown Orlando.

Noor Salman, the wife of Omar Mateen, appeared in a yellow jumpsuit before Judge Karla Spaulding with her stand-by lawyer Fritz Scheller. Her normal attorney did not appear.

The court went over her Florida charges, which are aiding and abetting and obstruction of justice. On her behalf, Scheller entered a plea of not guilty.

On Thursday, April 20, a hearing will take place to determine if the defense and prosecutors are ready for a June 5 trial.

A status hearing is scheduled for Monday, May 15, at 4 p.m.

Salman is staying in general population, according to a deputy U.S Marshall Criminal Investigator. The investigator would not confirm which jail for security reasons.

No family or victims of the Pulse shooting were at Wednesday's hearing.

Noor Salman showed no emotion while she sat handcuffed, next to attorney Fritz Scheiler.

"She was transported, she had her arraignment today, and she entered a plea of not guilty," said Fritz Scheller, Lawyer.

Scheller is a well-known criminal defense attorney in Central Florida.

According to court documents, Salman was scheduled to appear in a California court on Monday, April 10, for a hearing to fight her transfer to Florida. However, she waived her right to that hearing and was transferred to Orlando to face trial.

Last month, a federal judge in California reversed a decision to release her on bond. She has been in custody since being arrested in January.

Salman was arrested in the San Francisco bay area, about seven months after the tragedy at Pulse nightclub in June 2016. Her husband killed 49 people and wounded more than 50.

She's accused of obstruction of justice and aiding and abetting her husband's material support to ISIS. She denies the charges. 

"It is going to be a long road, and she is fine. Thank you," said Scheller. 

New court documents released Wednesday reveal electronic surveillance and confidential witnesses could be used as evidence against her in the trial.

Survivors: Someone has to take responsibility

Pulse survivors and family of Pulse victims are reacting to Noor Salman’s first appearance in federal court in Orlando.

One survivor who barely escaped with his life says he was invited to attend court, but it was too difficult to come face to face with the shooter’s widow.

Chris Littlestar was shot while hiding out with others in the nightclub’s bathroom.

“I was shot the first time probably three times, and then the second time he came back. I was shot two times,” said Littlestar.

Littlestar says he mainly just wants justice.

“I don’t want to see somebody convicted for something that I’m not sure they took part in. But at the end of the day, somebody has to take responsibility, and she knew what was going on with him,” said Littlestar.

Littlestar talked about Salman’s federal court appearance while at an event in Orlando Wednesday related to an upcoming documentary about the Pulse tragedy. 

Christine Leinonen, who lost her only son in the tragedy, says she will go to federal court eventually.

“If and when she’s convicted by a jury, I definitely want to be there to let the sentencing judge know the impact this massacre had on so many people,” said Leinonen.

“Nobody knows exactly what part she took in it,” said Littlestar. “I definitely think she should be held accountable for whatever part she did do.”

Survivors, victims’ families and others deeply affected by the Pulse tragedy said the timing of the federal court case is going to make things even more difficult.