I don't have enough information to know exactly who Jocelyn Shaker is in this context. She could be an ordinary person whose real - life story is being told.
I'm not sure specifically what 'Jocelyn Shaker Based on a True Story' is about as there isn't much information here. It could be about a person named Jocelyn Shaker and the events that actually happened in their life.
I'm not sure. The truthfulness of Jocelyn Shaker's story depends on various factors. It could be partly true and partly embellished to make it more engaging.
It's not a true story. Usually, such tales are either created by authors' imaginations or based on loosely inspired elements rather than real events. In this case, the abduction of Jocelyn Shaker seems to fall into the fictional category.