Pawel Relowicz is the only person who knows how the 21-year-old student ended up in the River Hull and whether she was alive at the time

The parents of Libby Squire still don't know how their beloved daughter died.

Her killer Pawel Relowicz is the only person who knows how the 21-year-old student ended up in the River Hull, whether she was alive when she was put in the water or how she was killed on Hull's cold, dark Oak Road playing fields.