Federal prosecutors are asking a federal judge to sentence disgraced Theranos CEO Elizabeth Holmes to 15 years in prison.

Once-lionized entrepreneur Elizabeth Holmes wrapped up seven days of testimony Wednesday in her criminal fraud trial, defending her actions as CEO of the startup Theranos.

Fallen Silicon Valley star Elizabeth Holmes returned to the witness stand on Monday to tell a story likely to determine whether she is convicted or acquitted of criminal charges alleging she duped investors and patients into believing she had invented a breakthrough in blood-testing technology.