need literature review completed

10 academic sources about the topic (Why is America so violent?)

*Address all 10 academic sources in the literature review

*What have they added to the literature?

*End literature review with "What has not been addressed is.... "and with "What I'm Addressing....." (I am addressing that overpopulation is the main reason America is so violent).

*Literature review should be a minimum of 2-2 1/2 pages

Attached are my 10 academic sources.