Alec Kreider, 25, was found hanging in his cell Friday at the state prison in Camp Hill, Pennsylvania, authorities said.

Man convicted of 3 murders as teen kills himself in prison
48 Hours
yesterday at 23:00. Facebook
Officials say William Riley Gaul fatally shot Emma Walker as she slept two weeks after she broke up with him.

Ex-college football player indicted in high school cheerleader's killing
48 Hours
yesterday at 22:15. Facebook
The arrest comes after a torso and leg belonging to an unidentified female were discovered at a Bronx trash facility last week.

Report: Head found in freezer; arrest in NYC body parts case
48 Hours
yesterday at 20:00. Facebook
Aeman Presley avoids the death penalty with the plea deal.

Man admits killing 2 homeless men as they slept outside
48 Hours
yesterday at 19:00. Facebook
“You pretend you have the moral high ground but you put that man’s finger on the nuclear button,” the woman can be seen saying in the video.

Video shows woman being kicked off flight for yelling at Trump supporter
48 Hours
yesterday at 18:00. Facebook
Police weren't able to say whether the victim supported President Donald Trump or opposed him.

Man bites ear off another man during argument about Trump, police say
48 Hours
yesterday at 17:00. Facebook
The justices left in place a lower court ruling that said Kody Brown and his four wives can’t sue over the law because they weren’t charged under it.

High court won’t hear "Sister Wives" appeal
48 Hours
yesterday at 16:00. Facebook
Unable to break the car windows herself, Kim Novak says Officer Tim Schwering was "swinging on that thing like Ken Griffey Jr. in the home run derby."

Spokane police officer, driver recount fiery car rescue caught on tape
48 Hours
yesterday at 15:00. Facebook
“What we have here is a robbery gone really, really bad,” Police Chief William McManus said, adding that the shooting was “absolutely senseless.”

Good Samaritan shot dead in San Antonio mall; second suspect caught
48 Hours
yesterday . Facebook
A local hangout was supposed to be a safe place for four teenagers on December 6, 1991. What happened?

If you have any information on this case, police encourage you to call 512-472-TIPS. [ Link ]

WATCH: "Innocence Lost"
48 Hours
01/22/2017 at 23:00. Facebook
Take a look at this flashback only three months into the investigation of the Texas yogurt shop murders.

Detectives wrestle with hundreds of tips after murders of Austin teens
48 Hours
01/22/2017 at 22:00. Facebook
WATCH: Peter Van Sant sits down with a private investigator to find out why he does what he does.

Q&A with investigator Don Winner
48 Hours
01/22/2017 at 21:00. Facebook
Police say they are looking for a white four-door sedan, but no other details were immediately available.

5 pepole shot, including 6-year-old boy, at Florida home
48 Hours
01/22/2017 at 20:00. Facebook
Friends and family search through a dense Panamanian swamp, in their efforts to find missing American Yvonne Baldelli.

Searching the jungle for Yvonne Baldelli
48 Hours
01/22/2017 at 18:30. Facebook
On December 6, 1991, Detective John Jones was on duty when his police radio crackled: a local yogurt shop was on fire and firefighters were reporting multiple bodies.

Austin detective races to scene where four teens found murdered
48 Hours
01/22/2017 at 17:12. Facebook
An ex-Marine with a secret life and a secret wife -- a five-year investigation turns up shocking DNA evidence.

Is the one-time hero a killer, too?

WATCH NOW: Devil's Island
48 Hours
01/22/2017 at 15:30. Facebook
The murder of four young girls leads to two murder convictions, but then everything fell apart.

25 years later, there's new DNA evidence.

WATCH: Innocence Lost
48 Hours
01/22/2017 at 03:00. Facebook
Michele’s sisterly instincts kicked in after the happy emails and phone calls ended. Where was Yvonne? [ Link ]

"Devil's Island" is now live in the East! Leave your questions for our team below:
48 Hours
01/22/2017 at 02:00. Facebook
First responders were expecting a building fire. But what they uncovered was far worse. [ Link ]

#48Hours is now live in the East -- leave your questions for our team below!
48 Hours
01/22/2017 at 01:00. Facebook
Four murders so awful investigators assumed they were done by monsters.

Watch a #48Hours double feature tonight at 9/8c. [ Link ]