Shkreli hinted that he intended to testify at his trial, which starts in June.
The lawyer, Jeremy Mis, said she intended to testify at a grand jury proceeding set to begin next week.
The officials said they had intended to testify when the hearing was to examine a wide range of policing initiatives in New York City Housing Authority developments.
He added, "Since I intend to testify on my own behalf, I feel it is no longer necessary for Jennifer to be involved in these proceedings".
Mr. Gibson had been threatened, the police said, but still intended to testify in the case against Wesley Sykes, 21, who is accused of murdering Dennis Brown, 20, in September.
And Jill S. Levy, the president of the principals' union, said she had always intended to testify and would do so on Friday at a hearing about the principals' contract.
Mardas also said that he intended to testify in court that Cynthia had committed adultery with him.
We have always indicated to the committee that she intended to testify but that she had a scheduling conflict.
WASHINGTON, D.C., May 23 (Reuters) - When embattled Internal Revenue Service official Lois Lerner was called before a congressional committee Wednesday, she declared that she had done nothing wrong - but said she did not intend to testify.
