Now, it's even altering the way murders are committed and investigated.
Cheyenne Rose Antoine, 21, conceded on Monday to killing Brittney Gargol, 18, in March 2015. The body was discovered by a passerby. Gargol was found strangled to death by a belt close to a landfill.
Watson said her client acknowledged the problems she's had, noting Antoine has already applied for several addiction assistance programs and is working on a high school diploma. She claims she doesn't remember it happening, but once the police put two and two together, she knew it was time to make a deal with the prosecutors.
Antoine also reportedly lied to police, telling them she was with her friend the night she was killed but that she later went home to see her uncle.
And the key piece of evidence was a Facebook photo of the pair.
"This young woman has issues, and because of those issues, she is risky", Ritter said, according to CKOM.
But for two years, police had no leads. The belt in the photo was the one found near Gargol's dying body, CBC News reported.
Cheyenne Rose Antoine had uploaded a selfie on Facebook along with Brittney Gargol, hours before the latter's murder. She said she couldn't recall the killing, but doesn't dispute that she killed her.
This complex investigation took nearly two years to solve, and, Antoine was initially charged with second degree murder.
Antoine admitted in court Monday that she killed her friend, but said she does not remember doing so.
Watson told the court Antoine had grown up in foster care and had been mentally, physically and sexually abused.
After sentencing Antoine, Judge Marilyn Gray told her, "Honor your friend by becoming a positive member of the community". She was exposed to heavy drug and alcohol use by her mother, who died about a year after being reunited with her daughter. She added that they met people before Gorgel made contact with an unknown man. She also played the part of concerned friend, asking Facebook if anyone had seen Gargol. "It's wrong and shouldn't have happened", Antoine wrote in a statement her lawyer read aloud in court.
She said they had got drunk and into a heated argument.