In chilling new court testimony, an FBI agent revealed what investigators believe happened to the 17-year-old

In chilling new court testimony, authorities have described what they believe missing teen Brittanee Drexel‘s last days were like: She was kidnapped then gang raped and fatally shot, before being thrown to alligators, an FBI agent said earlier this month.

Drexel, then 17, vanished without a trace on April 25, 2009. The rising soccer star had gone away with friends on a spring break trip to Myrtle Beach, South Carolina, but without her parents’ permission. She was last seen leaving the Blue Water Resort on Ocean Boulevard, the busy main drag.

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For more than seven years, Drexel’s case has remained a mystery and source of deep grief to her parents. Authorities have only said that they believe she was killed after being held against her will for several days.

But earlier this month, FBI agent Gerrick Munoz testified in court to what authorities believe happened, citing a recent “jailhouse confession” from an inmate, according to a court transcript obtained by PEOPLE.

Munoz testified on Aug. 15 at a federal detention hearing for Timothy Da’Shaun Taylor, to determine whether Taylor should be free as he awaits trial on unconnected federal robbery charges.

Munoz testified that Taylor’s suspected role in Drexel’s disappearance proves he is a danger to the community and should not be released.

But Taylor’s attorney, David Aylor, highlighted in court the prosecution’s lack of hard evidence and said that his client has not been arrested for any crimes in Drexel’s disappearance or death.

Rather, Aylor said, the government was attempting to “squeeze” Taylor into cooperation.

‘A Human Trafficking Situation’

Munoz testified that an inmate told authorities he allegedly saw Taylor “sexually abusing” Drexel in 2009, along with other men, according to court documents.

The inmate, Taquan Brown of Walterboro, South Carolina, told investigators that in the days after Drexel vanished he went to a “stash house” near McClellanville, South Carolina, where he allegedly saw Taylor with the teen and other men, Munoz testified. (Brown is serving a 25-year sentence for voluntary manslaughter.)

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During his trip to the stash house, described as a place where Taylor and others hung out, Brown said Drexel ran out of a room but was allegedly “pistol-whipped” by her captors and taken back inside, Munoz testified.

At that point Brown said he was allegedly outside with Taylor’s father, Shaun Taylor, and Shaun went inside, Munoz testified. After Shaun allegedly went into the house, Brown said he heard two shots fired and he assumed Shaun shot Drexel, according to Munoz’s testimony.

Brown said her body was then wrapped up and taken out to be discarded, according to Munoz’s testimony.

Investigators have unsuccessfully searched for Drexel’s remains, Munoz said. “Several witnesses have told us Ms. Drexel’s body was placed in a pit, or gator pit, to have her body disposed of – eaten by the gators,” he said, adding that there are 30 to 40 gator pits in the area, making the search for her body difficult.

Authorities also received “secondhand information” from another inmate in the Georgetown Detention Center that corroborated Brown’s jailhouse confession, Munoz said. The second inmate had heard that Timothy allegedly picked Drexel up in Myrtle Beach and drove her to McClellanville, where her last cellphone signal pinged, Munoz said.

Timothy allegedly “showed her off, introduced her to some other friends that were there” in McClellanville, Munoz testified. “They ended up tricking her out with some of their friends, offering her to them and getting a human trafficking situation.”

When news of the teen’s disappearance became widely publicized, her captors decided to kill her and dispose of her body, Munoz testified.

New Charges for Timothy

The August hearing comes after new charges for a previous crime: Timothy earlier received a suspended youth offender sentence and served two years’ probation as the getaway driver in a 2011 robbery of a McDonald’s in Mount Pleasant, South Carolina, according to court records. He was at the fast food restaurant with two others, who held up the McDonald’s, according to records.

In June, Timothy was indicted on federal charges of interference of interstate commerce by threat or violence for his involvement in the 2011 robbery.

Assistant U.S. Attorney Winston Holliday said the government brought new charges against Timothy because he only received probation for the McDonald’s robbery, while the other two men involved got lengthy sentences. One of the other two non-fatally shot the store manager during the robbery, according to the court records.

Two Families’ Angst

During the bond hearing, Timothy’s mother, Joan Taylor, testified on his behalf, saying he already served his time for his involvement in the robbery.

Calling him “a great kid,” she testified that she is a church pastor and that, as a mother, she was strict and “kept great hold on him.”

She denied the accusations against him in Drexel’s case and said he would never have gone to Myrtle Beach at 16.

In a later interview with the Post and Courier, Joan denied that her husband was involved as well, calling the government’s case against her family “craziness.”

In a Facebook posting on Monday, Drexel’s father, Chad Drexel, said that while he understands Timothy’s mother defended him in court, he believes the now 25-year-old South Carolina man was involved with Brittanee’s disappearance and death.

“Based on evidence the FBI and the Myrtle Beach Police department has gathered, along with FACTS and SPECIFIC INFORMATION gathered from a team of Private Investigators that I HIRED to work with local law enforcement actively during the case (which will SOON COME TO LIGHT) – we have no doubt Timothy Da’Shaun Taylor played a significant role in the abduction and murder of my daughter,” Chad wrote.

He said he hopes other witnesses come forward and that the suspect goes to prison for life. “Please keep our family and our Brittanee in your prayers!” he wrote.

A spokeswoman for the U.S. Attorney’s Office declined to comment on the testimony or case and calls to the FBI were not immediately returned. Aylor, Timothy’s attorney, had no comment.

In court, Aylor argued that his client should not be punished for something for which he has already served time – just because the government wants “to squeeze him” and pressure him into confessing because “some jailhouse rat has come up with a story,” according to court records.