There are multiple artists with the this name:
These are photos from concerts where Prowler played, so they may be of other bands that played the concert as well.
TRC / Polar / Prowler / Bare Your Scars Dec 2, 2012 Southampton, England, United Kingdom Uploaded by Dan Delaney
Armored Saint / Prowler / Von Helsing Feb 12, 1988 New York, New York, United States Uploaded by Denial Omega