I'm no authority on Wounded Knee, but the Dee Brown book is notoriously one-sided. I have read another account (long time ago, and I can't remember where) that stated that the Indians had concealed weapons with them and commenced firing upon their captors, whose pent-up feelings resulted not only in their returning fire, but in finishing the job and keeping no prisoners. I'm vouching for neither account, but one-sidedness is always inaccuracy.