Allegations of witness tampering in the federal Feeding Our Future trial rocked the courtroom Tuesday, leading to new security measures and a new investigation into the role one of the defendants may have played in the incident.

Federal prosecutors showed the jury in the Feeding Our Future trial on Tuesday evidence that Minneapolis City Council Member Jamal Osman turned over his “shell company” nonprofit to others who used it to commit fraud.

Jury intimidation has been front of mind since defendants in the last Feeding our Future trial offered a bribe to a juror.