Charlotte's Killer

This anonymous character is responsible for the death of Charlotte DiLaurentis. This character is apparently being pursued by Uber A, who thinks The Liars know who is the killer.

The killer may have followed Charlotte to The Church and maybe engaged her in a violent fight. At the end, they may have used a metal rod to hit her neck, breaking it. Afterwards, the killer threw the body off the bell tower to make it look like a suicide.

In "Tick Tock, Bitches", The Liars think that Alison killed Charlotte. At Alison's house, Emily found the red sweater that belonged to the blonde woman who was seen by Aria and Ezra entering the church that night. It was revealed in Hit and Run, Run, Run that the Red Sweater Blonde was Ali, though she didn't kill Charlotte.

Suspects

 * Melissa Hastings
 * Jenna Marshall
 * Jessica's Killer
 * Noel Kahn

Eliminated suspects

 * Spencer Hastings
 * Aria Montgomery
 * Hanna Marin (Lied about being the killer to Uber A)
 * Emily Fields
 * Byron Montgomery (was with Ella)
 * Ella Montgomery (was with Byron)
 * Ezra Fitz (saw and was seen by Ella and Byron)
 * Alison DiLaurentis (only went to the church to try and talk to Charlotte, but never killed her)

Trivia

 * In "Tick-Tock, Bitches", The Liars along with Ezra, Toby and Caleb secretly voted for the identity of Charlotte's killer. We can presume the votes were:
 * Alison: 4 votes (possibly from Aria, Ezra, Toby and Caleb)
 * Mona: 1 vote (possibly from Spencer)
 * Spencer: 1 vote (possibly from Mona)
 * "No name": 1 vote (from Emily, who also thought Alison was the killer, but had doubts)