You did verify the "death" -- neither draft made it out of committee this legislative session. It could be introduced as a new draft in 2011.
Please, I need some more explanation.
I see by the 09 - 10 Blue Book that the 99th Wisconsin Legislature continues until 3 January 2011 (p255) and the 2009 - 2010 Session Schedule (p260) has three more "Deadline for sending bills to governor". All this is to say that I see nothing unique in 25 March 2010.
How are bills dead by being in committee on 25 March 2010?