A man convicted of second-degree attempted murder fled the courtroom Thursday afternoon into downtown Minneapolis and hasn't been found.

Michael David Henderson, 25, of Minneapolis, was on trial for charges related to a violent armed robbery at the Bloomington Sam's Club in March, according to court documents.

He's described as being 5'7", 154 pounds, wearing a solid maroon shirt, black pants and black shoes.A mugshot from his arrest after the Sam's Club robbery shows him with longer hair. His listed address is on the 2300 block of Harriet Avenue S.

Sheriff's spokeswoman Jennifer Johnson says as the verdict was being read, Henderson made a run for it. Johnson says Henderson scuffled with some sheriff's deputies before running out of the building. She says one deputy was hurt.

He's considered dangerous, according to an alert issued Thursday evening by the Hennepin County Sheriff's Office. Anyone with information about his whereabouts should call 911 or a tip line at 763-525-6216.

Details of the Sam's Club armed robbery can be found in the court document posted below.

Charges against Michael David Henderson by mckinney3365