The suspected Austin bomber used the used the alias “Kelly Killmore” while FedEx-ing two explosives-filled packages Sunday, law enforcement sources tell ABC News.

Mark Conditt, 23, was caught on surveillance camera shipping the boxes from a store in the suburb of Sunset Valley.

One of the packages detonated at a FedEx distribution center near San Antonio on Tuesday — leaving one worker with minor injuries — and the second was then recovered at another, intact, at a separate shipping center in Austin.

The security footage shows the suspect wearing a blond wig under a blue cap and construction-style gloves as he handed over the packages to an employee around 7:30 p.m. Sunday.