Gary Giordano, left, speaks with Aruba's police detectives as they search for Robyn Gardner last month. (Elton Malone/AP)

Monday’s exercise was intended to test Gary Giordano’s account that that his traveling companion, 35-year-old Robyn Gardner of Frederick, drowned while the two were snorkeling, prosecutors said.

Giordano’s defense lawyer, Michael Lopez, called the re-enactment “one-sided,” telling the Associated Press that authorities ignored some of his client’s statements. Lopez also said he wasn’t allowed to videotape the re-enactment.

Giordano was arrested Aug. 5, three days after telling police that Gardner drowned. He is the only suspect in Gardner’s presumed death.