Were 3 slain for their religion or their parking space?

http://www.sfgate.com/news/us/article/Man-arrested-after-3-shot-to-death-in-North-6074536.php

http://www.sfgate.com/news/us/article/Man-arrested-after-3-shot-to-death-in-North-6074536.php#photo-7514300

Were 3 slain for their religion or their parking space?