Autism Speaks help families with early intervention programs Marla Garchik, co-chair of virtual walk, 'amazed' by son Marla Garchik, co-chair of the Autism Speaks Walk, has a son with autism. She says she's "amazed" by how far he's come since his diagnosis, thanks to an early intervention program with Autism Speaks. and last updated 2021-03-04 17:16:50-05 HIGHLAND BEACH, Fla. â In just three days, the Autism Speaks Walk will be taking place virtually in Palm Beach County. Organizers said the spirit and energy are very much the same like in years past. Marla Garchik isn't letting the pandemic get in the way of participating in one of the events that she holds dear to her heart.