The walk, which is 3,210 steps, honors the third copy of the 21st chromosome that causes down syndrome.

Down Syndrome of Louisville and Critically Loved held Rappel for a Reason.

It happens every March 21, because Down syndrome is the tripling of the 21st chromosome. 

Around 70 participants went "Over the Edge" and rappelled 18 stories to raise funding for the nonprofits.

Penn Station is holding its Round-Up for Down Syndrome campaign from March 1 to 21.

Once the vans are repaired, Down Syndrome of Louisville hopes someone can step up to provide a safe place to store them.

Some say the interruption illustrates a larger problem with TARC's service for disabled riders.