A Mexican teenager allegedly stabbed her best friend to death after the friend posted naked selfies of them on Facebook, the Mexican news site Notus reported, according to the Latin Times.

Erandy Elizabeth Gutierrez, 16, was arrested as a suspect in the death of her friend, Anel Baez, 16. Gutierrez allegedly stabbed Baez 65 times at Baez's home in Guamuchil on March 19.

Police say Gutierrez was angry with Baez for "humiliating" her, the New York Daily News reported. The teenaged-suspect is expected to be charged with murder sometime this week. If convicted, Gutierrez faces up to seven years in prison because she is a juvenile.  

Baez reportedly invited Gutierrez over to her house to apologize for uploading naked photographs of Gutierrez on Facebook. Gutierrez pretended to go to the bathroom sometime after she arrived, but instead went to the kitchen for a knife, the Latin Times reported.

Gutierrez then allegedly stabbed Baez over and over. The teenager left the scene of the crime and was arrested when she attended Baez's funeral several days later.  

According to social media, Gutierrez considered Baez her "beloved sister."

"I love you..." Gutierrez wrote in one photo caption, according to the Latin Times. "You are my beloved sister...thanks for those moments of madness that provoke me and the laughter that you give me and also the desire to do crazy things with you."  

But evidence also suggests that Gutierrez was upset with her best friend for quite some time, sending Baez threats on Twitter.

"It may seem that I am very calm, but in my head I have killed you at least three times," Gutierrez wrote on her now deleted Twitter account, according to the Latin Times.

Baez would be "lucky to survive until the end of the year," the suspect tweeted, the Latin Times reported.