This may have nothing to do with anything, but yesterday I made an off-hand comment that in my area of California, Sikhs control a significant percentage of the trucking business -- among other businesses and industries -- and I got to thinking....
The Sikh Temple shooter was described as a truck driver in several reports. I don't know whether Sikhs have significant control of trucking in Wisconsin, North Carolina, or Colorado, but it wouldn't surprise me if they do. They work their damn butts off in the trucking business.
Could be Mr. White Supremacist Shooter got his panties in a wad because he found that "even in Wisconsin" -- so white it shines -- Sikhs were running the trucking business and he felt slighted and shut out.
From what I've seen about him -- and he apparently had quite a public presence through his bands and interviews and so on -- dude was no slack-jawed dummy. He would not have mistaken Sikhs for Muslims and gone to a gurdwara to shoot the people he did because he thought they were Muslims. I wouldn't be surprised if he knew exactly who he was shooting and why.
It may be conventional wisdom to think he was too stupid to know the difference, but there's no sign at all that he was that dumb. There are signs that he was smart, talented, and a risk-taker -- as well as a white-supremacist fascist/nazi -- who had fallen on hard times (his house in NC was foreclosed, among other things, [adding: after he was fired by the Iowa trucking company he was working for in NC, because he got a ticket for driving while impaired in his own vehicle on his own time]) and decided he knew who to blame and punish for his misfortune.
I could be wrong, of course. But it's just something else to consider.