I think the brother of sandyhook became jacksonville
brother's voice is in a video in this page, listen to the voice and notice the neck also
http://www.dailymail.co.uk/news/article-2248327/Ryan-Lanza-Moment-brother-Adam-Lanza-saw-CNN-mistakenly-report-Sandy-Hook-shooter.html
this is Bread
the Jacksonville shooter, timestamped and the shots can be heard right after so warning about that
https://youtu.be/83KXmb-7mSY?t=1m46s
IMO they are the same person