Angelo J Costanza Attorney At Law Martinez Attorney: Personal Injury, Wrongful Death, Criminal Defense and DUI. Personal Injury, Wrongful Death Law Office - Martinez, CA. Angelo J. Costanza - Martinez, CA Personal Injury, Wrongful Death Attorney. Specializing in Personal Injury, Wrongful Death, Criminal Defense and DUI. Serving the cities of Martinez, Concord, Pleasant Hill and Vallejo, California.