explosions at boston marathon

[TheSpyder]

Here's an interesting question I was wondering. If they picked the time to detonate why did they pick 4:09 as I clearly saw the time on the footage. Certainly with time requirements to enter the Boston Marathon if you really wanted to hurt the most people you would do it earlier as most people would be around the three hour mark.

Maybe this nut wanted the time to mean something so I googled 4/09 or April 9th and this is what I found:

2003 – 2003 invasion of Iraq: Baghdad falls to American forces;Saddam Hussein statue topples as Iraqis turn on symbols of their former leader, pulling down the statue and tearing it to pieces

I know this is a stretch but......