OSWEGO, Ill. - A delivery driver is dead and a maintenance worker is hospitalized after a stabbing early Wednesday at a Chick-fil-A restaurant in Chicago’s southwest suburb of Oswego, police said.

What we know:

The stabbing happened around 5 a.m. at the restaurant at 2740 U.S. Route 34, according to Oswego police. Officers arrived and took a male suspect into custody before administering aid to an injured victim.

A second victim was found and pronounced dead at the scene, police said. Authorities said the victim’s identity is being withheld pending family notification.

Investigators said surveillance video showed the suspect breaking through the restaurant’s back door around 3:10 a.m. and attacking a delivery driver inside. The driver was killed in the assault, police said.

A second

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