Who is Steven L Anderson? In order to answer that question, we have to start with Christopher Broughton.
So who's Christopher Broughton? From the Arizona Republic:
The man who drew international attention by bringing an assault rifle to President Barack Obama's rally on Monday is a Phoenix resident with ties to several anti-government or Nativist groups.
The man, who until now has been identified only as "Chris B," is actually 28-year-old Christopher Broughton, a former employee of a Tempe plastic-mold manufacturer.
Oh, that guy.
Talkingpointsmemo picks up the story:
Chris Broughton, the man who brought an assault rifle and a handgun to the Obama event in Arizona last week, attended a fiery anti-Obama sermon the day before the event, in which Pastor Steven Anderson said he was going to "pray for Barack Obama to die and go to hell", Anderson confirmed to TPMmuckraker today.