The horrific story of Muhammad Arsal Khan, a Toronto Muslim accused of the honor killing of his five-year old daughter, gets even worse with new revelations of Khan’s jailhouse conversations. (Hat tip: scaramouche.)

What the jurors in the Farah Khan murder trial know about the deceased little girl is that she was a five-year-old with a heart-shaped face; that she was a pupil in that grade with the deliciously oxymoronic name — senior kindergarten — and that she had made remarkable progress in a few short months in a country where virtually everything was new to her.

Yesterday, these same jurors who have in the main heard the child described only in properly gentle terms, listened to the harsh voice of her father, Muhammad Arsal Khan, refer to her as “that useless child,” “bastard offspring” and “child of a dog.”

What prosecutor David Fisher was playing in court were three of six audio recordings made secretly by Toronto police, who attached a body pack device to a fellow prison inmate of Mr. Khan’s. …

Mr. Khan, now 40, and his 49-year-old former wife, Kaneez Fatima, are charged with first-degree murder in Farah’s death. Both are pleading not guilty, though Mr. Khan has admitted he caused the little girl’s death, by his version unintentionally, and that he later dismembered her in the bathtub.

Earlier this week, Mr. X testified that Mr. Khan told him that he and Ms. Fatima had chased the child around a coffee table in the living room of their tiny basement apartment, that they caught her by the hair and legs and both allegedly beat her (Mr. Khan with a rolling pin, Ms. Fatima with a shoe) and then banged her head on the table, whereupon she died.

Thus the most jarring part of Mr. Khan’s obloquy repeatedly caught on tape was his obsessive revisiting of what appear to have been the events of the last night of Farah’s life.

Not for those with weak stomachs.