Gaynor Lord, 55, left work early on Friday and was declared missing five hours later when possessions including her phone, two rings and clothing were found in Wensum Park.
Images and footage released by Norwich Police this afternoon show the missing mother smiling as she left her place of work, before she was spotted on camera running down a street.
Outlandish theories on social media include a serial killer on the loose who murdered Nicola Bulley earlier this year before striking in Norwich and a rapist attacking the mother-of-three.