20/20 RECENT REPORTS

PHOTO: This June 10, 2005 file photo shows a missing poster for Natalee Holloway, a high school graduate of Mountain Brook, Ala., who disappeared while on a graduation trip to Aruba on May 30, 2005.

Natalee Holloway's disappearance remains unsolved nearly 15 years later: A timeline

The teen vanished on a high school graduation trip to Aruba nearly 15 years ago.

1h ago

PHOTO: At first, Christensen adamantly denied picking up a young Chinese visiting scholar who had gone missing days prior — but as investigators pressed him, his story changed.

Inside the interrogation of the man who killed university scholar Yingying Zhang

In 2017, Brendt Christensen was interrogated by the FBI in Champaign, Illinois.

Nov 15

PHOTO: The attorney for Brendt Christensen said Christensen was responsible for the death of murder of Yingying Zhang, a visiting scholar from China at University of Illinois.

Father of convicted Chinese scholar killer says murder could have been prevented

"I'm angry that it could've been prevented," Mike Christensen said.

Nov 13

Loved ones make emotional visit to Yingying Zhang's memorial

Zhang's family visits her memorial during the trial for her murder, two years after her disappearance. Xiaolin Hou, Zhang's boyfriend, said "The only way to find some relief ... is to find her."

Jun 12

Accused killer's former girlfriend says he was 'proud' during confession

Brendt Christensen is accused of killing Yingying Zhang in June 2017.

Jun 21

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