The point, as mentioned, is that either side of the gun debate doesn't want to research and look in to the factual data, they resort to name calling and diverting the topic. I can name a great many ways that people intentionally kill kids and they have nothing to do with firearms.
In my job, I see the scum of the Earth on a daily basis. We just had one couple be arrested for forcing their child to ingest common cleaning products. It was a very destructive and painful way to die. Another couple, a few months, was brought in for child abuse and the child dies during their booking in to the jail. They used pliers to twist the babies nipples completely off. The used a lighter to leave severe burn marks all over the body, and a clothes hanger to sodomize her. Under the recent news press about "saving even one child," these should all be banned as well.
Statistically, rifles account for less than 4.5% of homicides in the pre-ban period. In the post-ban era, that number has decreased to around 4% of homicides. The number of true assault rifles is a much smaller portion of those statistics. Statistically, less than six rounds are used in a homicide. These are both readily available, by year and state, in the FBI's Uniform Crime Reports.