Shouldn't they have to see the aftermath just so they are completely informed about it and what it looks like especially with regard to the babies and toddlers and young kids and teenagers that are murdered. Why?
You are assuming that there is a known father or that the father cares or that the father has not given his consent. A prohibition for anyone not in the military or law enforcement to have an AR-15.
Here is a list of mass shootings in the U.S. that featured AR-15-style rifles during the last 35 years, courtesy of the Stanford Geospatial Center and Stanford Libraries and USA TODAY research: