So if you can prove that the covid was planted... Would that be attempted murder?
The debate was held at the new Health Education Center of Case Western Reserve College. This is used for teaching medical and dental students among others and has classrooms and labs. They may have even had COVID samples stored for research purposes there.
The main pavilion was refitted with the lighting, sound, camera electronics, and stage scaffolding to build the set where the debate occurred.
Many contractor and media people were involved in preparing the venue without any close supervision beyond the usual director types. I can’t tell where the debate prep rooms were located relative to the stage but they were probably converted classrooms or meeting rooms.
All buildings of this type share central plant HVAC equipment but the airflows can be controlled through baffles to manage hot and cold regions of the large space.
Without architectural diagrams it would be speculation to say but air flow into the rooms used by the President’s debate team could have been downstream or otherwise isolated from those of the Biden team. If live virus could be introduced into certain ducts it would spread to the President’s team and then be removed by HEPA filters used improve recirculated air flows. If this is the case there should be some small residual amount of virus in ducts at the point of injection but this is rapidly degenerating. Anyone smart enough to try this would also likely install a temporary UV light or antiseptic spray to kill the evidence of their deed. Just speculation but it fits the pattern of virus spread assuming the debate site was the source.