‘The Devil’s Triangle’: ABC’s 20/20 focuses on case of missing Myrtle Beach woman

MYRTLE BEACH, S.C. — Twenty-year-old Heather Elvis was working at a Myrtle Beach restaurant when she met Sidney Moorer, a 37-year-old husband, and father of three.

The two became romantically involved, but after Sidney’s wife, Tammy Moorer, found out about the affair, she began threatening Elvis.

Elvis vanished shortly after without a trace and is still missing today.

A new two-hour “20/20” uncovers the shocking details surrounding the twisted love triangle, including the information that ultimately linked Sidney and Tammy to Elvis the night she disappeared, the stunning video that may have swayed the jury during trial, and Sidney and Tammy’s jail sentences in connection with Elvis’ disappearance.

The program also features interviews with Tammy, two of the jurors from Sidney’s 2019 trial, attorneys with the prosecution and defense, and Elvis’ roommate at the time of her disappearance.

“The Devil’s Triangle” airs at 9 p.m. Friday on Channel 9.