<P> Tree wakes up in another loop . Confused and angry that the time loop continued after she killed Tombs , Tree returns to her room where Lori offers the cupcake again . Tree realizes this was the only time she had ever eaten the cupcake and died in her sleep . Tree deduces that Lori is the true killer ; Lori had poisoned the cupcake , but when Tree declined to eat it , she utilized her job as a nurse in the hospital to drug and frame Tombs for Tree 's murder . Tree tries to coerce Lori to have a bite , however when Lori refuses , Tree decides to take the cupcake to the police . Lori lunges at Tree , locks the door and confesses that she was jealous of Tree 's affair with Butler , before engaging in a fight . Tree manages to stuff the cupcake in Lori 's mouth before kicking her out of a window , sending her falling to her death . </P>
<P> Tree wakes up in another loop . Confused and angry that the time loop continued after she killed Tombs , Tree returns to her room where Lori offers the cupcake again . Tree realizes this was the only time she had ever eaten the cupcake and died in her sleep . Tree deduces that Lori is the true killer ; Lori had poisoned the cupcake , but when Tree declined to eat it , she utilized her job as a nurse in the hospital to drug and frame Tombs for Tree 's murder . Tree tries to coerce Lori to have a bite , however when Lori refuses , Tree decides to take the cupcake to the police . Lori lunges at Tree , locks the door and confesses that she was jealous of Tree 's affair with Butler , before engaging in a fight . Tree manages to stuff the cupcake in Lori 's mouth before kicking her out of a window , sending her falling to her death . </P>
who is killing her in happy death day
who is killing her in happy death day
Lori
Lori