1 down and 534 to go ARLINGTON (CBS) A blog threatening members of Congress in the wake of the Tucson, Arizona shooting has prompted Arlington police to temporarily suspend the firearms license of an Arlington man. It was the headline 1 down and 534 to go that caught the attention. One refers to Congresswoman Gabrielle Giffords, who was shot in the head in the rampage, while 534 refers to the other members of the U.S. House and Senate. Police are investigating the suitability of 39-year-old Travis Corcoran to have a firearms license Arlington Man Loses Gun License Due To Blog About Tucson Shooting CBS Boston – News, Sports, Weather, Traffic and Boston's Best We certainly take this as a credible threat, and credible until we prove otherwise, said Arlington police Captain Robert Bongiorno. In his blog Corcoran writes, It is absolutely, absolutely unacceptable to shoot indiscriminately. Target only politicians and their staff and leave regular citizens alone. Travis Corcoran of Arlington Police visited Corcorans home and found a large amount of weapons and ammunition. Sources told WBZ-TV that 11 guns were removed. This guy should be treated as a threat to politicians and their staff . The comments on the blog are interesting .