The police are treating the explosion as possibly criminal or an act of terror until a motive is determined.
Meanwhile, details of Jabbar’s background have begun to emerge, including his life as an estate agent, his divorce and his financial troubles.
The FBI said he was believed to have been honourably discharged, and the Pentagon is said to be poring over its records to locate more information about his services and where he had been based.
In a video, believed to be posted by the Texas-born terrorist on YouTube, he said he worked for both the Midas Group and Blue Meadow Properties. He also said he was born in Beaumont, Texas, but was then based in Houston.
“I’ve been here all my life, with the exception of travelling for the military, where I spent 10 years as a human resources and IT specialist,” said Jabbar.
He said he “learnt the meaning of great service and what it means to be responsive and take everything seriously, dotting Is and crossing Ts to make sure that things go off without a hitch”.
