A miracle! They then quickly determined that the perpetrator was yet another lone nut in a long, long list of FIB-discovered lone nuts, who perished in the blast. Although there are cameras everywhere — probably hundreds — on that very busy, bar-and-restaurant-filled street, none of them caught a picture of the man driving the RV and then sitting in it for about six hours before the bomb went off.
Source: Another FIB Miracle – LRC Blog