Balin had redirected the cargo bot in that area to the other end of the docks, then it had gone outside, walked across the station’s hull, and come in through the transport’s module lock and waited for Lutran. It had used the narrow rods in its hand, the rods that were part of its sealed hatch decoder, to stab him. Balin didn’t have any DNA to conceal, but part of its onboard PA equipment included a hazardous materials sterilizer. It had used that on Lutran’s body, to make it look like a human had killed him and had needed to remove contact DNA and any other traces left behind.