Original Article Officer first tried to use Taser with suspect The Arizona Republic Feb. 28, 2005 12:00 AM ANTHEM - The officer who shot and killed a pedestrian near Anthem tried to first use his Taser before firing his sidearm during a scuffle on an Interstate 17 median. Department of Public Safety investigators are trying to determine why the unidentified suspect walked onto the highway median Saturday night near Anthem Way, and why he is suspected of throwing rocks at Officer Travis Palmer. Palmer, 31, fatally shot the suspect at 7 p.m.The shooting led to traffic backups in both directions on I-17. Steve Volden, a DPS spokesman, said no witnesses or vehicles were found near the shooting scene. Volden said the suspect, whose name was not released and who did not have ID on him Saturday night, made "aggressive" movements toward Palmer.