Quetiapine, sold under the brand name Seroquel among others, is an atypical antipsychotic medication used in the treatment of schizophrenia, bipolar disorder, bipolar depression, and major depressive disorder. From Wikipedia
Lindsay Clancy allegedly used her cellphone and a personal journal to document her mental state, feelings about her children, and research on ways to kill prior to murdering her three children while she was overmedicated and suffering from postpartum depression, revealing a severe mental health crisis that was untreated.