61.   Even hard-boiled police investigators had tears in their eyes, Green said.

62.   Federal investigators have had her under watch for months with audio and video equipment.

63.   Federal investigators have had to overcome significant hurdles during the five-month investigation, he said.

64.   Federal aviation investigators have a good record of recovering black boxes like these.

65.   Finally, last May, investigators had enough information to make arrests.

66.   Federal investigators have uncovered oversight lapses at the University of Miami, University of Florida and Yale University.

67.   Federal investigators have yet to discover the cause.

68.   Federal investigators have yet to reveal whether they have discovered any physical evidence tying Jewell to the bombing.

69.   Federal law prohibits the government from getting customer information without a subpoena or court order, which the investigator did not have.

70.   For the moment, though, investigators have no solid notion of why Batouti might have taken the action they think the voice and data recorders indicate he did.