Nova Manhunt Boston Marathon

May 29, 2013

http://www.pbs.org/wgbh/nova/tech/manhunt-boston-bombers.html

First part of this is about bomb technical issues.

Same to some extent as:

http://www.pbs.org/newshour/bb/science/jan-june13/bombscience_05-28.html

Van D. Romero New Mexico Tech

http://www.nmt.edu/vp-r-a-ed

Smoke is white, indicating gunpowder explosion. Consistent with pressure cooker bombs.

Ignition is the complicated step.

First one goes off, second person can set off second. So close together in time is not so hard
to understand.

Roof of 6 story hotel nearby find a lid of pressure cooker.

William B Evans supt Boston police.

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