First responders

Are there any known interviews or information about the teams who went into the library first? SWAT is obviously out of the question since they usually protect their identities at all costs but I guess I'm leaning more towards CSI or coroners etc. Usually with those kind of accounts you can find little details that you don't get with super factual police reports, which is why it's intriguing to me.

The first SWAT member to enter the library wrote a book.

Here it is.