NASHVILLE, Tenn. (AP) — A motive for the Christmas Day bombing in downtown Nashville remains elusive.

But the 63-year-old man who killed himself and wounded three other people in the blast left behind clues that he never intended to survive.

Officer Michael Sipos, 1 of the officers who responded to 2nd Ave N Christmas Day in the minutes prior to the explosion, had been issued a body camera just days earlier. Here is what he saw & heard: https://t.co/ytceSqc2Cp

— Metro Nashville PD (@MNPDNashville) December 28, 2020

Anthony Quinn Warner gave away his car, telling the recipient he had cancer.

He signed a document that transferred his Tennessee home to a California woman for nothing in return.

And the computer consultant told an employer that he was retiring.

But he didn’t leave behind a clear digital footprint or any other obvious clues to explain why he set off Friday’s explosion or played a message warning people to flee before the blast.

The FBI’s Evidence Response Team & the ATF’s National Response Team will be processing the blast scene on 2nd Avenue thru at least Wed evening. These are photos taken today by @FBIMemphis pic.twitter.com/RbCBIr3y6Q

— Metro Nashville PD (@MNPDNashville) December 29, 2020