Mass murder in the US

https://www.everydaysociologyblog.com/2018/12/making-sense-of-the-senseless-a-sociological-perspective-on-mass-shootings.html

What is the typical profile of the mass murderer? Summarize what has been learned about the typical mass killer and give specific examples. How do age, race, and place of residence relate to the emergence of a mass murderer?

What are the most probable causes of the increase in gun violence by young men in the U.S.?

Suggest what you would consider being one realistic approach to reducing the casualties from young men with guns.