222 Forensic analysis indicates that up to three weapons were fired at the Trump rally in Butler, Pennsylvania, on Saturday. This suggests that there was more than one shooter. - First three shots came by weapon A - The next five came by weapon B - The final shot was by weapon C (twitter.com) posted 236 days ago by Joys1Daughter 236 days ago by Joys1Daughter +222 / -0 98 comments share 98 comments share save hide report block hide replies
Have a listen of the main video of the shooting. You can hear that the sounds of the guns are quite distinct. No echo on second set, sounds like a different weapon.
Don't need special algorithms.