Coming up on Dateline NBC

FRIDAY, JULY 18

9pm ET: When Ted Ammon, a handsome multi-millionaire going through a nasty divorce, wound up beaten to death in his East Hampton cottage the New York City tabloids began to feast. Could it have been at the hands of a stranger from the beach or his soon-to-be ex-wife's electrician boyfriend, Danny Pelosi? Dennis Murphy reports on the case that had just about everyone talking, especially the man on trial.

10pm ET: Keith Morrison reports the international manhunt for Fredrick David Russell after he disappeared before going to trial for vehicular manslaughter.

SUNDAY, JULY 20

9pm ET: Two women form an unlikely friendship after one is hired to murder the other but ends up saving her life. Keith Morrison reports.

MONDAY, JULY 21

10pm ET: "Dateline Presents" takes a never-before-seen journey into the perilous world of the tower climbers who work on the frontlines of America's high-tech communications system. The hour-long broadcast, "Tower Dogs," goes up close and personal to give a no-holds-barred look at tower dogs' lives - up in the air and on the ground.

More from NBC News broadcasts Van Zandt: Suspicion surrounds mom in missing child case Video: NBC newsmen in eye of 'Dolly' Newsvine chat: Is the media biased against McCain? Gore touts bold energy plan on 'Meet the Press' Stretch of N.Y. highway named for Russert

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