Can someone explain?

California Population 36 million in 2006 2485 homicides (1822 with firearms) gets a "A-" rating from the Brady's
Ohio Population 11.5 million in 2006 487 homicides (334 firearms related) gets a "D-" rating from the Brady's
Ok they have 3 times as many people but 5 times as many homicides?
So far for 2007 Los Angeles has had 679 homicides (537 gun related) Population 1 million, so 1/10th the population but they have surpassed last year numbers for a poulation 10 times as large?

I think when picking states to visit, I'll go with the ones the Brady's have awarded D's & F's, they sound so much safer