The family of Katie Allan have today marked four years since her tragic death at Polmont Young Offender's Institute.
Katie, 21, was serving a 16-month prison sentence after being convicted at Paisley Sheriff Court in March 2018 for a drink-driving offence which injured a 15-year-old boy.
The first offender took her own life in her cell on June 4 of that year amid claims she was being bullied and humiliated.
