CARLY was under the care of Bolton social services and had lived in various children's homes and local authority accommodation during the last couple of years of her life.
Until about five months ago, she was a regular visitor at the Westhoughton Youth Drop-in Centre in Bolton Road.
For nine months, the teenager took part in its drugs and alcohol dependency programme called Wasted.
Then she was referred to the Bolton Council-run Project 360 which is a a more intense substance misuse scheme for under 18s.
No one knows why she stopped going to the drop-in centre and staff are shattered by what has happened.
A spokeswoman said: "We are devastated by what has happened.
"I am in shock and it such a shame for a young girl.
"We haven't seen her for the last four or five months. It was up to her if she wanted to ask for our help. We went around to her home several times so she knew we were here if she needed us.
"Carly was a nice girl. She felt the system had let her down. She wanted to come off the drugs but she wanted more help."
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