FREMONT, Calif. --Eugene Ramos is set to enter a plea in Alameda County Superior Court to charges stemming from an incident last week in a Union City dollar store. Police say Ramos assaulted the toddler after she wandered off from her family. The grandmother's screams alerted other shoppers. Two men in the store blocked Ramos' exit and held him until police arrived. The 36-year-old is a registered sex offender with a prior conviction for assaulting a 7-year-old Hayward girl in 2003.