‘They also did not say whether he had cereal or bacon and eggs for breakfast..’
since breakfast food is not associated with accidents, and ‘substances’ are, your post makes zero sense...
Since you are apparently too ignorant to recognize the totally irrelevant statement they did not say whether any other substance was possibly involved.
I added the equally irrelevant statement that was just as useless......
Some people get it, some idiots don't..........LOL!