(CNN) A woman trying to help what she thought was a needy mother and her baby has been fatally stabbed in Baltimore.

The good Samaritan was identified by police as 52-year-old Jacquelyn Smith, who was riding in a car with relatives Saturday when they saw a woman carrying what appeared to be a baby.

The woman was holding a sign that read, "Please Help me feed my Baby."

Suspect said thank you before stabbing victim

Smith, of Aberdeen, Maryland, handed money out the car window to the woman when a man approached the vehicle.

Read More