 At Borden 's murder trial , Angier 's ingénieur , John Cutter , testifies that he believes Borden pushed the water tank under the trap door to catch and kill Angier during his Transported Man trick . In prison , Borden is visited by an agent of Lord Caldlow , who offers to care for Borden 's daughter Jess in exchange for all of Borden 's secrets . As a show of good faith , Caldlow gives Borden a copy of Angier 's diary , which he begins reading . 
