他加入了空军，然后成为了匹兹堡的一名警官，之后被选入了美国联邦调查局。
正是在美国联邦调查局，他第一次加入了打击基地组织的战斗。
他是1998年派往非洲调查美国驻肯尼亚和坦桑尼亚大使馆同时发生爆炸事件的特工人员之一，在那次事件中，包括12名美国人在内的224人遇害。
作为该局证据反应小组的一名特工，米勒在2000年美国科尔号航空母舰遭到基地组织自杀式炸弹袭击后也在那里，在那次袭击中，12名水手丧生，驱逐舰瘫痪。
25年前，当基地组织恐怖分子在911事件中将四名乘客的飞机武器化时，他再次响应了号召。
“当我看着电视和滚滚浓烟时，我意识到了这一点，”米勒告诉ABC新闻的首席司法记者皮埃尔·托马斯。“我们当时在办公室，有很多能量，然后第二架飞机撞上了。我马上告诉我的主管，‘嘿，我必须去纽约。我是证据反应小组的成员。他们理所当然地说，‘等等，让我们来解决这个问题。此后不久五角大楼遭到袭击。就在那时，它变得绝对真实。＂
当美国航空公司77号航班撞上五角大楼时，米勒赶到现场，花了数周时间在现场从燃烧的残骸中收集证据。
“我不仅白天在指挥所工作，八小时一班，而且我还在第二班工作，”他说。
现在，25年过去了，他是遭受那一天长期影响的众多美国联邦调查局特工之一。
他和他的同事暴露在残骸中的有毒碎片中。911事件25年后，这种暴露导致许多美国联邦调查局特工和其他第一反应者患上癌症。
迄今为止，已有30多名美国联邦调查局人员死于癌症或其他疾病，美国联邦调查局称这些疾病与在911事件中接触有毒物质有关。
米勒说他个人至少认识十几个这样的人。
他指的是鲍勃·罗斯，根据美国联邦调查局荣誉墙，他是9月11日第一批到达仍在燃烧的五角大楼残骸的特工之一，他在2006年患上多发性骨髓瘤，并于2008年去世。
米勒记得罗斯是美国联邦调查局荣誉墙上的第一个名字之一，是一个“伟大的特工，一个伟大的顾家男人”
“他做了他能做的一切，但最后，他还是死于癌症。这是我第一次直接接触到和我一起工作过的人，”米勒说。
米勒并没有立即意识到他也可能容易患癌症。
“我们开始思考这个问题，在五角大楼的第一周，我们没有个人防护装备，我们没有合适的防护装备，我们没有合适的掩蔽，”他说。“我开始思考和盘点我在那里的日子以及我接触到的东西。”
2024年，米勒被诊断出患有前列腺癌。他治疗得很好，并认为他已经摆脱了癌症——完全缓解。
但今年早些时候，米勒在一次锻炼后表示，他开始感到背部剧痛。医生发现肿瘤压迫着他的脊柱。癌症复发了。
“我有肾癌，我有肺癌，两个淋巴结；我有脊梁骨，我剩下的就是大脑，”他说。＂我们每天都在祈祷——我们的信念变得更加坚定，因为我们必须这样做． ＂
米勒的妻子艾米告诉美国广播公司新闻，她的丈夫有积极的态度，他专注于为子孙后代做得更好。
“在这段旅程中，我们有很多次都在想，嗯，一定是这样了。他不可能经历其他的事情，”她说。“我们只是努力克服前进道路上遇到的一切，我们一直都是这样。”
即使是现在，当米勒与癌症抗争时，他也专注于为他人服务。米勒主张使世贸中心健康项目现代化，以跟上新技术的发展，并对那些在9／11事件中身处险境却不自知的急救人员进行筛查。
自2014年世界贸易中心的筛查政策制定以来的12年里，癌症检测取得了重大进展。米勒倡导更新癌症筛查政策，以便向9／11响应者社区提供最新、最全面的癌症筛查。
“我们需要主动筛查．．．他说：“我的肿瘤医生在大约两年前就说过，我会发现这一点。“这会给我一个提升，在这场战斗中助我一臂之力，这是我能做的最重要的事情。”
美国联邦调查局副主任Christopher Raia会见了米勒，并承认还可以做得更多。
“我们确实需要找出更好的方法，不仅检测到这一点，更好的测试，更好的护理，因为人们变老了，也许这些东西开始在他们的体内转移，”Raia说。
“我想为他们争取权益，作为副主任，我想尽我所能，给那些人真正的支持、关心和斗争，让他们继续下去。”
在米勒经历了这一切之后，他说他会再次回应五角大楼。
他说，“我几乎可以保证，我所知道的每一个特工、特工和专业支持人员都会再次这么做。”
Retired FBI Special Agent Jeffrey Miller has always answered the call to service．
He enlisted in the Air Force then became a Pittsburgh police officer， before being selected to join the racks of the FBI．
It was with the FBI that he first joined the fight against al-Qaeda．
He was part of a contingent of agents sent to Africa in 1998 to investigate the simultaneous bombings of the U．S． embassies in Kenya and Tanzania where 224 people， including 12 Americans were murdered．
An agent with the bureau＇s evidence response team， Miller was also there in 2000 after the U．S．S． Cole was attacked by an al-Qaeda suicide bomber where 12 sailors were killed， leaving the destroyer crippled．
And 25 years ago， he answered the call again when al-Qaeda terrorists weaponized four passenger jetson 9／11．
＂The significance hit me when I watched the TV and the billowing smoke，＂ Miller told ABC News＇ Chief Justice Correspondent Pierre Thomas． ＂We were in the office and there was a lot of energy， and then the second plane hit． And I immediately told my supervisor， ＇Hey， I have to go up to New York． I＇m on the evidence response team．＇ And they rightly said， ＇Wait， let＇s let＇s figure this out．＇ And then the Pentagon was hit shortly thereafter． And that＇s when it became absolutely real．＂
When American Airlines Flight 77 slammed into the Pentagon， Miller rushed to the scene， spending weeks on site recovering evidence from the burned wreckage．
＂Not only did I work the command post during the day， an eight-hour shift， but I worked evidence response the second shift，＂ he said．
Now， two and a half decades later he is one of the many FBI agents that are suffering from the long-lasting effects of that day．
He and his colleagues were exposed to toxic debris in the wreckage． Twenty-five yearsafter 9／11， that exposure led to many FBI agents and other first responders developing cancer．
So far more than 30 FBI personnel have died from cancer or other illnesses the FBI says are related to exposure to toxic material at the9／11 sites．
Miller says he personally knows at least a dozen of them．
He pointed to Bob Roth， one of the first agents to arrive at the still-smoldering wreckage of the Pentagon on Sept． 11， who developed multiple myeloma in 2006 and died in 2008，according to the FBI＇s Wall of Honor．
Miller remembered Roth as one of the first names on the FBI＇s Wall of Honor and as a ＂great agent， a great family man．＂
＂He did everything he could， but in the end， he succumbed to cancer． And that was initially my direct exposure to someone that I had actually worked with，＂ Miller said．
It did not immediately dawn on Miller that he could also be susceptible to cancer．
＂We started thinking about it and the first week at the Pentagon， we didn＇t have PPE， we didn＇t have proper protection gear， we didn＇t have the proper masking，＂ he said．＂I start thinking about and kind of inventorying my days there and what I was exposed to．＂
In 2024， Miller was diagnosed with prostate cancer．He did well with treatment and thought he had put the cancer behind him -- full remission．
But earlier this year Miller， after a workout， said he started feeling severe pain in his back．Doctors found tumors were pressing on his spine． Cancer had returned．
＂I have kidney cancer， I have lung cancer， two lymph nodes； I have spine， and I the last one I have is brain，＂ he said． ＂And we＇re praying every day -- our faith got stronger because we have to． ＂
Miller＇s wife， Amy， told ABC News that her husband has a positive attitude， and he is focused on making things better for future generations．
＂There＇s been a lot of times during this journey that we＇ve thought， well， this must be it． This， he can＇t possibly have to go through something else，＂ she said． ＂We just kind push through whatever comes along the way and we＇ve always been that way．＂
And even now， as Miller battles cancer， he is focused on serving others．Miller is advocating to modernize the World Trade Center Health Program to keep up with the new technology and screening for first responders who put themselves in harm＇s wayon 9／11and didn＇t know it．
There have been significant advancements in cancer detection in the 12 years since the WTCHP＇s screening policy was established in 2014．Miller is advocating for updating the cancer screening policy to make available the very latest and most comprehensive cancer screening to the9／11responder community．
＂We need that active screening ．．． I would have caught this -- my oncologist said close to two years ago，＂ he said．＂And it would have given me a lift， a leg up on this fight， the most important thing I could have done．＂
FBI Deputy Director Christopher Raia has met Miller and acknowledged that more can be done．
＂We do need to figure out better ways to not only detect this， better tests， better care as folks age and maybe these things start to metastasize in their body，＂ Raia said．
＂I want to champion for them， and I want to do everything I can from my chair， as the Deputy Director， to really give those folks the support， the care， and the fight that they need that they needed to continue．＂
After all Miller has been through， he said he would have responded to the Pentagon again．
＂I can almost guarantee that every agent， special agent and professional support that I know of would do it again，＂ he said．
