IOWA CITY, Iowa (AP) -- A judge has declared a mistrial in the first-degree murder trial of a 19-year-old man charged in the 2009 shooting of an Iowa City landlord.

Judge Sean McPartland ended Charles Thompson's trial Tuesday after prosecutors mistakenly showed part of a videotaped police interview with Thompson in which an agent made reference to a previous incident investigated by authorities in Michigan. That statement was supposed to be redacted so it did not prejudice jurors.

The Gazette reports the defense's motion for mistrial was granted over the objection of Johnson County Attorney Janet Lyness, who stopped the tape after hearing the statement and argued jurors should simply discard it.

Prosecutors are expected to retry Thompson, who is charged in the death of 64-year-old John Versypt. He claims he is innocent.