Grace sums up the modus operandi of a pedophile  via her tweet messages this one captured my attention - "I remember the feeling of loneliness distinctly. The paedophile degraded my then pregnant mother, saying she was “full of hormones”. He also ridiculed staff and students, and undermined my relationship with my father. I became untethered to both my loved ones and sense of self." Grace Tame - I do believe they target vulnerable children and drive a wedge between them and their parent/s.  Particularly true if the perpetrator is a step parent - it's their way of keeping their vile actions secret.