St. Louis, MO - Detectives are investigating a crime that has the chief of police shaking his head.
Surveillance video from K-mart shows a struggle going on near the front of the K-mart.
Police say a 35-year-old woman was stopped by store security after she tried to leave with a shopping cart full of items without paying.
The woman's friend, a 31-year-old male gets involved in the fight.
Police say the woman sprayed mace at the security officer and then she and the man ran out of store leaving the four year old boy behind sitting in a shopping cart.
"It makes a very sad statement, about some segment of society who is willing to involve this young child in a commission of a crime then when they're stopped they runaway and leave the child."
Police arrested the woman and man at a home on Fair Avenue in north St. Louis.
Their names have not yet been released.
The four year old boy is staying with other family members for now and police say they will contact the Missouri Division of Family Services about the boy's future.
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