Attorney for Dubuque stabbing suspect wants evidence thrown out

An attorney for a Dubuque man accused of killing one man and wounding another during a fight wants a judge to throw out evidence in the case.

Michael Mayton faces several charges, including first-degree murder and attempted murder. He's accused of fatally stabbing David Tate and injuring Richard Schramm last August.

During an interrogation, Mayton told police "I'm done," and his attorney says investigators should have stopped questioning him. David Staudt argued during a hearing on Thursday that all statements after that point, including blood and DNA samples, should be thrown out.

Prosecutors say Mayton's statement was in reference to a specific line of questioning.

The judge is expected to issue a ruling next week. Mayton's trial is set for May 17.

-- Associated Press