A woman has been released from the hospital and a good Samaritan who came to her aid is recovering after a suburban Kansas City Wal-Mart parking lot attack in which a suspect was killed.

Police said the Kansas City, Kansas, woman was putting her baby in her car Sunday afternoon in the parking lot of a Walmart in Shawnee when two suspects hit her in the head from behind. Shawnee police Maj. Dan Tennis said a Kansas City, Missouri, man in the parking lot who tried to help was shot several times and is recovering after undergoing surgery.

"They didn't know one another. He saw her and tried to help," said Tennis.

Another good Samaritan from De Soto, Kansas, has been interviewed and released after fatally shooting 28-year-old John Simmons III, of Kansas City, Missouri.

On Tuesday, Shawnee police said Arthur Fred Wyatt III, 27, of Overland Park, Kansas, was arrested. He is charged with attempted first-degree murder, attempted aggravated kidnapping, and attempted aggravated robbery in connection to the incident at the Shawnee Walmart.

Shoppers at the Johnson County super center were disappointed by the violence, but said it could happen anywhere.

"It makes me wonder about coming here at night though, but it happened in broad daylight on a Sunday. There's no place safe," said shopper Clara Knapp.

Authorities continue looking for the second suspect after determining that a man arrested afterward wasn't involved.

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