Witnesses have reportedly told federal prosecutors that R. Kelly married Aaliyah in 1994 when she was just 15 years old, to avoid criminal charges and to keep her from testifying against him.

According to the Chicago Sun-Times, Kelly managed to smuggle a letter last year into the federal jail as well as an “unmonitored line” to make an unrecorded phone call, which means that prosecutors are fighting to keep the identity of two of his alleged victims private, for fear he will attempt to intimidate them or obstruct justice.

“Simply put, the defendant’s past behavior reveals that if given the opportunity to influence a potential witness, the defendant will take it, and his incarceration may not be enough to prevent such conduct,” prosecutors wrote.

“Witnesses have advised the government that the defendant engaged in this bribery scheme to obtain a marriage license so he could quickly and secretly marry Jane Doe #1 to avoid criminal charges for engaging in a sexual relationship with Jane Doe #1, who was a minor at the time,” prosecutors wrote. “Specifically, the defendant believed that his marriage to Jane Doe #1 would prevent her from being able to testify against him in the event he were prosecuted for his criminal sexual relationship with her.”

Kelly’s lawyer, Steven Greenberg, has argued that Kelly “simply has no means or method by which to engage in any obstructive conduct,” but prosecutors feel that he has - and his smuggled letter and clandestine phone calls prove as much.