Kevin Baker, a disabled Navy veteran, died less than a week after starting his hand-powered bicycle journey from OK to DC.  His journey was to bring attention to H.R. 1034, a resolution to adopt the Honor and Remember flag he was carrying as a permanent symbol of service men and women who never made it home, similar to the POW/MIA flag for those whose fates are unknown.  The flag was designed by the father of a fallen soldier, and Kevin decided to embark upon his journey after hearing about the flag to bring attention to it.  He passed away after suffering a seizure. 

You can read about him and the petition to get the flag adopted nationwide at the link above.  R.I.P., Kevin.