[forgotten man]

Why would a non-Muslim go to the trouble of making a non-lethal car bomb? A pig’s head rolled into the mosque would have been much more effective.

[Boogieman]

Most non-muslims wouldn't even know how to make a car bomb! When it comes to "modus operandi", the short list would be muslims, Irish seperatists (who learned from muslims), and the Sicilian mafia. As far as I know, the IRA and La Cosa Nostra don't have much presence in Australia, so...