Riverdale police said a 15-year-old girl dropped her wallet in the store Sunday while shopping for a Christmas gift her grandmother, who had just lost her husband of 69 years three weeks ago. In her wallet was $125 cash she collected from her own birthday last week.
Surveillance video shows another shopper - a woman - walk by the girl and kick the wallet away while the teen is shopping, police said.
The woman is then seen picking up the wallet and leaving. Police said she didn't turn it over to Walmart staff or to law enforcement officials.
After learning about the incident, Walmart donated a gift card to the girl so she could get a present - but the girl decided to instead donate the gift card to charity.
Riverdale police have released other surveillance photos of the woman.
They want to talk with her about the incident. Anyone with information is asked to contact detectives at 973-835-0034.