Excellent post and question. Not sure but thought that the link for the blood alcohol content is for the average person based on their weight, the volume of alcohol, alcohol content, over a period of time. Not based on trauma. In other words, in my small mind, this BAC calculator might give us an idea what a person similar to J with a certain weight, volume of alcohol, and alcohol content, over a period of time, might be expected to exhibit BEFORE the trauma. Is he totaled, or just a little tipsy. Just a means to try to understand what might be expected for average person based on the values entered. Not sure that this calculator is meant to assist in determining the BAC for someone so decimated as J was. In other words, this BAC calculator does not appear to incorporate trauma. I thought it might help us understand the state that J was in BEFORE or DURING the attack. Just a way to try to understand what the average person might be expected to encounter based on the values entered. Of course, sometimes I get lost.