And I had come to the same conclusion as Doctorow: Part of the point of the sit-in is that you take the risk of being arrested to make a political point.
These blindingly fast decisions occur in the limbic system and happen long before the more conscious part of the brain processes the data and reaches a conclusion.
Critical Path Analysis tells you that you should begin the longest part of a composite task first, in order to reach the conclusion as soon as possible.
Toxicology tests carried out as part of the autopsy were handed to an expert in Geneva for analysis before a definitive conclusion was reached, but the tests found that there was no trace of stimulants.