<P> The second half deals with the girls being more determined to find out who ' A ' is . They set up a plan that tricked ' A ' . The plan had moderate success as the girls were able to steal A 's phone . The girls ( except Hanna ) enlists Caleb 's help on hacking to A 's phone ; however , A tries to shut down the phone , but before A shuts the phone , they were able to discover some clues . Their investigation later leads them to Lost Woods resort , locating A 's lair in one of the rooms . Meanwhile , Garrett is arrested for Alison 's murder after Jenna hands the ripped page 5 of Alison 's autopsy report to the police . After finding more clues , Spencer discovers that ' A ' may be her sister , Melissa , but when she and Mona head to A 's lair , she finds clues that lead to the identity of ' A ' : Mona . Mona is admitted to Radley , and Dr. Sullivan returns after revealing it was Mona who threatened her . Later Maya is found dead near Emily 's house , devastating Emily . In Radley , Mona is visited by a woman in a red coat and Mona reports back to the figure , revealing that the A-Team has a new leader . </P>
<P> The second half deals with the girls being more determined to find out who ' A ' is . They set up a plan that tricked ' A ' . The plan had moderate success as the girls were able to steal A 's phone . The girls ( except Hanna ) enlists Caleb 's help on hacking to A 's phone ; however , A tries to shut down the phone , but before A shuts the phone , they were able to discover some clues . Their investigation later leads them to Lost Woods resort , locating A 's lair in one of the rooms . Meanwhile , Garrett is arrested for Alison 's murder after Jenna hands the ripped page 5 of Alison 's autopsy report to the police . After finding more clues , Spencer discovers that ' A ' may be her sister , Melissa , but when she and Mona head to A 's lair , she finds clues that lead to the identity of ' A ' : Mona . Mona is admitted to Radley , and Dr. Sullivan returns after revealing it was Mona who threatened her . Later Maya is found dead near Emily 's house , devastating Emily . In Radley , Mona is visited by a woman in a red coat and Mona reports back to the figure , revealing that the A-Team has a new leader . </P>
who dies at the end of season 2 pretty little liars
who dies at the end of season 2 pretty little liars
Maya
Maya