There are gaps, you’re right. I can only go by what was on the video, along with what I know what and who police have to deal with daily.
If it had turned out that the woman had died from what she took, and there was no way for the cop to know for certain what she took, every one of the anti-police members here would have been all over the police for having not taken the proper precautions to ensure her well-being.
Reading through the posts, I see that you are asking questions and suggesting alternative possibilities. For that, it is being suggested that you are a boot licker. And IMO, that is uncalled for.