A 31-year-old woman investigators believe to be the mother of a toddler who was abandoned at a grocery store has been taken into custody Tuesday afternoon, Riverside police said. The suspect was identified midday Tuesday as Chiengkham Vilaysane. By early evening, she had been taken into custody at a bank in the south end of Riverside, according to Riverside Police Department spokesman Officer Ryan Railsback. Police released her photo and name in an effort to find her several hours before she was detained. It's not clear if she's been arrested.