SoCal
Excellent point on observational & emulating characteristics of other cultures to lower crime. It might not work for every cultures.
Jews have genetated that success model over time. I notice, correct me if I'm wrong, that wasn't much presented during the world war eras. What percentage of Jews are living in or below poverty currently? How many Jews are homicide victims by other Jews per year? Compare those findings to the English, Irish. Italian, German, and othe white cultures.
Matter of fact English, Irish, & German makes up about 1/3 to 45% of the Whites collectively in this country. So are they the majority of suspects/victims among the Whites?
There aren't stats on Jewish homicides in the U.S. Maybe you can find stats in Israel, but then those stats would include victims of terrorism.
If you want to look at the top ten causes of death in the United States broken down by age groups, race and sex, then the best source is this CDC report:
http://www.cdc.gov/nchs/data/nvsr/nvsr65/nvsr65_02.pdf
