To see how riders felt on that same route a day after the fatal stabbing-- we rode BART from the Bay Fair station to South Hayward. It's about a 10-minute ride. Here's what riders were thinking.
RELATED: Authorities ID victim, suspect in fatal stabbing on BART train at South Hayward station
"It's crazy the stuff that's happening now," according to BART passenger Brad Merritt.
"You know, since we had the stabbing at MacArthur and now the stabbing yesterday, yes I always fear about being on public transportation with my baby," said Ghabonna Byers, who was riding with her one-year-old son Malik.
RELATED: Victim found stabbed at South Hayward BART station was killed intervening in theft
"I want to know what BART is doing because I had no idea that someone was killed on the same train I decided to be on today," said Shelly Thomas
Surprisingly, most of the people we talked with had no idea there had been a fatal stabbing on the very same BART line that they were riding, that some of them ride every day.