联邦调查局正在寻求公众的帮助来找到左管状炸弹在1月6日国会山前的晚上，在共和党全国委员会和民主党全国委员会华盛顿暴乱。
新发布的视频显示，美国联邦调查局称，嫌疑炸弹手背着背包，携带调查人员认为是管状炸弹的东西前往目标。
1月5日晚上7点40分，有人看到嫌疑炸弹手拿着包站在南国会街的一个住宅区，当一个遛狗的人经过时，包被短暂地放在地上。
晚上7点52分，可以看到此人坐在挪威国家中心前的长椅上，据报道，第一枚管状炸弹被放置在灌木丛下。嫌疑人似乎拉上包的拉链，站起来走开了。
联邦调查局
美国联邦调查局于3月9日发布了新的视频和附加信息，向公众征集信息
晚上8点14分，在RNC附近的一条小巷里看到了疑似炸弹袭击者，在那里发现了第二枚管状炸弹。过了一会儿，一个安全摄像头拍下了嫌疑犯走在国会山俱乐部门前的画面，该俱乐部毗邻RNC，距离大炮楼办公楼不到半个街区。
“这些管状炸弹是可行的装置，可能被引爆，造成严重伤亡。我们需要公众的帮助来确定放置这些管状炸弹的责任人，以确保他们不会伤害自己或任何人，”联邦调查局负责华盛顿外地办事处的助理局长在一份声明中说。
美国联邦调查局(FBI)还发布了一张新的通缉令，上面有嫌疑人的照片，以及他们穿着的独特的黄色耐克“极速草皮”鞋。
联邦调查局
美国联邦调查局于3月9日发布了一张新海报，寻找一名身份不明的人的信息
“我们仍然相信有人拥有他们可能直到现在才意识到有意义的信息，”安托诺说。“我们知道报告家人或朋友的信息可能是一个困难的决定——但这是关于保护人类生命的。”
除了嫌疑人的鞋子和衣服之外，联邦调查局还要求公众考虑他们认识的任何人是否最近对制造爆炸性黑火药表现出兴趣，或者可能购买了炸弹的任何组件，包括用于制造这些装置的白色厨房定时器。
这些视频还显示了嫌疑人的行走方式或步态，调查人员希望有人能认出来。目前尚不清楚嫌疑人是男是女。
斯科特·斯威特(Scott Sweetow)是美国酒精、烟草、火器和爆炸物管理局(Bureau of酒精、烟草、火器和爆炸物管理局)的一名退休副局长，也是美国联邦调查局(FBI)恐怖爆炸装置分析中心的前代理主任，他表示，寻求公众帮助的努力可能表明法医证据的价值有限。
斯威特告诉美国广播公司新闻，“已经有足够的时间来发展取证技术——在这一点上，脱氧核糖核酸和潜在的指纹——这通常可以解决犯罪问题。”
“当你没有看到逮捕，当你看到奖励在几周内逐步增加时，这意味着这个案子需要再一次突破——希望有一个公众成员在看到奖励或额外的图像时站出来，这让他们记忆犹新，这样他们就可以向ATF或FBI提供一些有用的信息。”
悬赏10万美元缉拿嫌疑犯。
安托诺敦促任何可能掌握有助于找到爆炸嫌疑人的信息的人联系联邦调查局。
New images released of suspect in pipe bombs found at RNC, DNC before Capitol riot
The FBI is asking for the public's help to find the person wholeft pipe bombsat the Republican National Committee and the Democratic National Committee the night before the Jan. 6 Capitolriot in Washington.
Newly released video shows what the FBI says is the suspected bomber walking with a backpack and carrying what investigators believe are pipe bombs to their targets.
At 7:40 p.m. on Jan. 5, the suspected bomber is seen standing in a residential neighborhood on South Capitol Street with the bag, which is briefly set on the ground as a man walking his dog passes by.
At 7:52 p.m., the person can be seen seated on a bench in front of the DNC, where the first pipe bomb was reportedly placed under a bush. The suspect appears to zip up a bag, stand up and walk away.
At 8:14 p.m., the suspected bomber is seen in an alley near the RNC, where a second pipe bomb was found. Moments later, a security camera captures the suspect walking in front of the Capitol Hill Club, adjacent to the RNC and less than half a block from the Cannon House Office Building.
"These pipe bombs were viable devices that could have been detonated, resulting in serious injury or death. We need the public's help to identify the individual responsible for placing these pipe bombs to ensure they will not harm themselves or anyone else," the FBI's assistant director in charge of the Washington Field Office said in statement.
The FBI also released a new wanted poster with images of the suspect and the distinctive Nike "Air Max Speed Turf" shoes with a yellow swoosh they wore.
"We still believe there is someone out there who has information they may not have realized was significant until now," D'Antuono said. "We know it can be a difficult decision to report information about family or friends -- but this is about protecting human life."
In addition to the suspect's shoes and clothing, the FBI is asking the public to consider whether anyone they know may have exhibited a recent interest in making explosive black powder or may have purchased any of the components of the bomb, including the white kitchen timers used in constructing the devices.
The videos also show the suspect's manner of walking, or gait, which investigators hope someone may recognize. It remains unclear if the suspect is a man or a woman.
According to Scott Sweetow, a retired Bureau of Alcohol, Tobacco, Firearms and Explosives deputy assistant director and former acting director of the FBI's Terrorist Explosive Device Analytical Center, the push for the public's help is a likely indication that the forensic evidence was of limited value.
"There has been an ample period to develop the forensics -- at this point the DNA and latent fingerprints -- which very often solve the crime," Sweetow told ABC News.
"When you don't see an arrest and when you see the reward ratcheting up over the weeks that implies that there needs to be another break in the case -- hopefully a member of the public coming forward when they see the reward or the additional images, released and it jogs their memory so they then come forward to either ATF or FBI with some good usable information."
A reward for information leading to the arrest of a suspect stands at $100,000.
D'Antuono urges anyone who might have information that could help find the suspected bomber to contact the FBI.
