However , Heather , furious that Luke turns her down , tries to kill Anna , but ends up drugging Olivia instead .
Anna finds Anthony 's body , but is unable to charge Heather when she comes up with an alibi .
Heather , furious that Luke turns Heather down , tries to kill Anna , but ends up drugging Olivia instead .
Anna finds Anthony 's body , but is unable to charge Heather when she comes up with an alibi .