Scott Zeiter declined to change his plea at a first hearing . He is linked to five stabbings in Michigan , Michigan and Ohio , police say . Authorities say he was in custody twice before they knew he was a suspect . He was trying to board a flight to Israel when he was taken into custody , police said . He was arrested this week at the airport in Atlanta on suspicion of killing 18 people .
Scott Zeiter declined to change his plea at a first hearing . He is linked to five stabbings in Michigan , Michigan and Ohio , police say . Authorities say he was in custody twice before they knew he was a suspect . He was arrested this week at the airport in Atlanta on suspicion of killing 18 people .