No helmet, no gas, no sense.

[Jerry Clair]

Bummer for the dude however, The bike is very interesting
http://www.youtube.com/watch?v=3dRpAZci9m0
http://www.killacycle.com/

Rickard Olsson <richie at webhackande.se> wrote: "The inventor of the “KillaCycle” electric motorcycle almost killed 
himself during a demonstration at the Wired NextFest conference.  Bill 
Dube, a government scientist during the day and electric bike builder at 
night, did a “burn out” in front of the Los Angeles Convention Center, 
but accidentally accelerated too much and crashed into a Minivan."
http://www.tgdaily.com/content/view/33853/113/

The concept of sticking batteries in a bike is sound.
Having the inventor (as opposed to the regular test driver) demo the 
bike on camera unprepped, is not.

     / Richie