KANSAS CITY, Mo. — A man in his 20s is fighting for his life after he was shot in the head Tuesday night.

His condition is critical and he may not make it, according to Kansas City Police Department.

Officers responded to 117th and Hardy after what neighbors describe as gunfire that sounded like fireworks around 8:40 p.m.

"I've never noticed anything out of the ordinary," said Donna Morain, who walks the Rolling Woods neighborhood daily with his dog, Jack. "It's a quiet, peaceful neighborhood. Sometimes I meet neighbors walking their dogs."

Police arrested a man in his 20s after the shooting but he was released Wednesday.

Neighbor Sarah Fisk said she had been outside playing with her son before the shooting started.

"I was giving him a bath and next thing you know he's yelling, 'police car, police car,'" said Fisk.

They said the suspect did not resist arrest but has not been formally charged.

"We are going to put all the case together and send it to the DA and let them make that determination," said officer John Lacy, public information officer for Overland Park Police.

Neighbors were shocked by the violence on a sidewalk in their quiet neighborhood.

"They need to take some anger management, I do believe. They don't know how to cope with disagreements," said Donna Morain.

Detectives continue their investigation, using metal detectors in two front yards, the sidewalk and street.

The Johnson County crime lab assisted.

Police are still unsure what led up to the dispute.