Maricela Vera, 41, was killed Tuesday night in Melrose Park.
Concerned neighbors are waiting for answers from police on the investigation.
Vera's family members gathered at the Melrose Park home she shared with her husband and children.
They did not want to talk about what happened to Vera.
Vera died just before 8 p.m. after being shot, according to police. Family members found her unresponsive in the garage, authorities said.
Neighbor Cathy Acevedo said she thought something was wrong on the block when she got home from work around 6 p.m. and saw several police cars.
It wasn't until Wednesday morning when Acevedo found out what happened.
"It's so sad," Acevedo said. "I feel so sorry."
Residents can only speculate about what happened. They discussed rumors that the deadly shooting followed a robbery.
Police are still investigating and are not releasing any details.
In the meantime people in the neighborhood said they will pay closer attention to their safety.
"Nobody's safe," Rev. Anthony Simmons said.