Friends, family and others from across Birmingham attended the unveiling of a memorial stone for schoolgirl Christina Edkins.
The 16-year-old was attacked and stabbed to death on the top deck of the number 9 bus, which was travelling on the Hagley Road in March.
The stone has been placed near to where the attack took place, at number 54 Hagley Road.
More top news
The daughter of a businessman, thought murdered in India, says the body sent to the UK from the Punjab is not that of her father.
Jordan Burndred's devastated mum Nicola confirmed the news on Facebook saying the 17-year-old 'didn't make it through the night.'
An eye specialist is the latest victim of a gang of muggers targeting cyclists on Birmingham's canals.