An assault on a security guard results in the arrest of a man from Dubuque. 30 year old Jessie Becker was arrested Monday at MercyOne Dubuque Medical Center on a warrant charging assault with injury, assault on persons in certain occupations and first-degree harassment. A report says that Becker assaulted 33 year old Brett Friedman, a MercyOne security guard, on April 20th at the hospital.