Canadian man who stabbed his wife released from mental hospital . Cardiologist Guy Turcotte confessed , served six months . Children 's advocate , also a doctor , says she wants answers . Jury finds Turcotte not responsible because of mental illness .
Canadian doctor who stabbed his children freed from mental hospital . Cardiologist Guy Turcotte confessed , served 46 months . Children 's mother , also a doctor , says she wants answers . Jury found Turcotte not responsible because of mental illness .