Alternatively, if the attacker(s) left the scene, or parked the RV in a location where no surveillance cameras could detect if he/she left the scene, a more sophisticated operation will become more likely. And then we’re squarely in lots-of-unexplained-questions land.

58/x
Finally, we’ve got the RV — by far the most important piece of evidence.

Investigators will try to track its movements in the hours, days, and weeks before the attack. They’ve already released a good photo, and let’s hope they have other good video from downtown.

59/x
From the photos and videos they already have, investigators will know the make, model, and possibly production year of the RV — all of this will narrow the search for it considerably. High quality video may even capture the plates.

60/x
In addition to the possible surveillance videos, which hopefully can help trace the RVs route — at least downtown — there are likely to be many leads from people in the public who may have seen it in the past few days.

61/x
Less likely given the size of the blast, but still possible, is that investigators at the scene will find a part of the RV that will help identify it.

Given the explosion, I’d say they’re focusing more on prior photos, videos, and witnesses who may have seen it.

62/x
However they identify it, investigators are going to focus on finding out as much as possible about the RV.

Who owned it? Was it rented? When? Reported stolen? If so, how long ago and where?

The answers to those questions will determine where the investigators look next.

63/x
So, for close readers, what’s the 1/2 major thread left for investigators to follow?

Intelligence reports + claims of responsibility.

When someone commits an attack like this, they and people around them tend to talk. Investigators will be listening, hoping for a break

64/x
This can happen two ways.

For the criminal/terrorist himself, they might want to brag about what they’ve one. Even if they don’t take public credit, they want their buddies to know what they’ve done.

These loose lips can become solid leads.

65/x
Almost as useful, and certainly much more common, is a friend, family member, or jilted paramour who — after the fact — connects the dots and starts to tell *their* friends and associated.

This is how the Unabomber got busted ... eventually.

66/x
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