Sophie Bennett, 19, hanged herself at care facility in south London in May 2016
The Richmond Psychosocial Foundation International has been fined £40,000
Peggy Jhugroo, 57, manager of the care home, was also handed a £3,000 fine
Ms Bennett was admitted to the home in 2015 suffering from complex needs
For confidential support, call the Samaritans on 116123 or visit a local Samaritans branch. See www.samaritans.org for details