 She was admitted to St Elmo's Hospital in Tamworth, where she was diagnosed with postnatal depression and spent several weeks recovering.After being released, Knight placed two-month-old Melissa on a railway line shortly before a train was due; she then stole an axe, went into town and threatened to kill several people.A man known in the district as "Old Ted", who was foraging near the railway line, found and rescued Melissa, by all accounts only minutes before the train passed.