Community-based anti-violence organizations are extremely valuable when reporting on or gathering statistics about hate crimes. In recent years LGBT violence has been on the rise in the United States. The biggest act of violence occurred in Orlando when Omar Mateen attacked the Pulse nightclub in the city killing 49 and wounding 53 others. This was not only the biggest attack on LGBT people but one of the biggest mass shootings in the United States history. By June 2018, the FBI had declined to classify the incident as an anti-gay hate crime, as evidence suggested that Mateen had scouted several different targets before choosing Pulse and that he did not know it was a gay nightclub. There were also 28 Americans who identified as LGBT and were killed in 2016 alone. The United States has passed some legislation to combat increasing violence against LGBT people. In the late 1990s, the Hate Crime Statistics Act (P.L. 101–275) was passed to try to prevent further hate crimes and enhance criminal sentences for people who do commit them. While this act was passed more than 20 years ago, local police officers often have no training on identification of hate crimes based on sexual preference. In 2009, the Matthew Shepard and James Byrd Jr. Hate Crimes Prevention Act was passed, which added gender, sexual orientation, gender identity, and disability to federal hate crime law. Measures to stop violence against LGBT people Shelters and organizations may provide safety for victims, or potential victims, of violence. Lambda Legal has published a list of resources in all 50 states that may be useful for LGBT members seeking help or protection. Organizations such as the True Colors Fund and the Human Rights Campaign are safe spaces for homeless LGBT youth to receive healthcare, housing, and education. Organizations located throughout the United States can provide safety and care for these individuals, although they are not always well known or present in a community. Effects of violence against LGBT People There are many effects of violence against LGBT people on both their psychological or mental health and physical health. Violent acts, including domestic and sexual abuse, towards the LGBT community may lead to depression, PTSD, suicidal behaviors, or trauma. According to the authors of "The Effects of Polyvictimization on Mental and Physical Health Outcomes in an LGBTQ Sample", many people, especially LGBT, experience effects of anti-LGBT violence: "Although adverse outcomes may