His group has Ambassador Steven's journal and it was discussed in this interview. Basically, Stevens knew he was in danger. The journal entries are chilling.
Wow. How they got their hands on that, has to be a story all in itself.
Breaking: The Benghazi Diary, A Hero Ambassador’s Final Thoughts (SOFREP)
http://www.freerepublic.com/focus/f-news/3035847/posts
The journal is posted at the SOFREP link on the thread,