The death of a 21-month-old Meredith girl remains unsolved after 31 years.-- Hospitalized: April 12, 1989-- Died: April 15, 1989-- Case status: Unsolved homicideAuthorities said Angel Hazelton had seizures April 12, 1989, prompting her mother, Angela Lane and Angela's boyfriend, Wayne Kimball, to call an ambulance.Hazelton was rushed to Lakes Region General Hospital in Laconia.She was later transferred to Boston Children's Hospital where she died three days later on April 15, 1989, authorities said.An autopsy showed Hazelton died because of blunt force trauma to the head. It also indicated the trauma was up to one week old, officials said.Officials said Hazelton was living with her mother and Kimball on Stagecoach Road in Meredith. She also spent time with her father, David Hazelton, who resided on Oxbow Road in New Hampton. Can you help police solve this case? Submit a tip to the New Hampshire Cold Case Unit.