edit note - the last part about relationship between murder victim and offender was off - it isn’t broken down by firearms only. you have to also look at this table
to get an idea of the percentage of each circumstance was related to firearms
The Kellerman “study” has been debunked numerous times.
Start with the basics; John Lott, Gary Kleck, or even the CDC report Obama just had done after Sandy Hook but buried it along with the media after the results didn’t match the narrative.