New York ( CNN ) -- A 12-year-old girl found hanged in her home left behind a suicide note that mentioned online bullying , according to police . Gabrielle Molina was found dead Wednesday afternoon by her family , authorities said . In addition to interviewing Gabrielle 's friends and relatives , police took two computers from the seventh-grader 's home to investigate whether harsh online messages and other cyberbullying may have been a factor in driving the young girl to take her life , New York Police Commissioner Ray Kelly told reporters . `` It 's a terrible , terrible tragedy , '' Kelly said Thursday . Police released few other details . Gabrielle 's school , Jean Nuzzi Intermediate School 109 in Queens , received an overall rank of B in the city 's 2012 school progress reports , but a C in the `` School Environment '' portion , which includes rankings on safety and respect , communication and engagement . But Dennis M. Walcott , chancellor of the New York City Department of Education , says he takes cyberbullying seriously . `` It 's something that I want to make sure we continue to focus on , something I 'm very much interested in working with our student population about , '' he said . `` Kids need to know they 're not in this situation by themselves , '' Thomas Meyers , a crisis counselor sent to the school to talk to Molina 's classmates , told CNN affiliate WCBS . Young people and social media : Docs examine pitfalls . According to the Cyberbullying Research Center , approximately 20 % of students report experiencing cyberbullying in their lifetimes , and adolescent girls are specifically likely to have experienced it . In a 2008 Yale University report published in the International Journal of Adolescent Medicine and Health , researchers analyzed 37 studies that examined bullying and suicide among children and adolescents . Nearly all of the studies found a link between being bullied and suicidal thoughts among young people , and five even reported that victims of bullying were 2-9 times more likely to report suicidal thoughts than other young people . Suicide is the third-leading cause of death among young people , resulting in about 4,400 deaths per year , according to the Centers for Disease Control . For every suicide among young people , there are at least 100 suicide attempts . When bullying goes high-tech .
Girl hangs self at her home in Queens . Suicide note mentions cyberbullying , police say . Investigation will include look at two computers .