CHICAGO (WLS) -- All three people killed in crashes on Interstate 57 earlier this week have been identified.

Those killed include Ruben F. Lujano, 50; Martese Williams, 33; and Daekwon Cunningham, 29, the Cook County Medical Examiner's Office said.

ABC7 Chicago is now streaming 24/7. Click here to watch

Lujano's family said Thursday that he had gotten into a crash on his way home from work early Wednesday morning near 120th Street in Calumet Park.

He got out of his car to help others, his family said.

Witnesses said a speeding car wasn't far behind.

Illinois State Police said the three were hit and killed on the scene.

At least five others were hurt.

Lujano's family is demanding answers.

Illinois State Police would not comment on if anyone could be charged.

In fact, they say

See Full Page