It was a gathering for peace until gunfire ripped through a public park, causing panic. It happened at a park in Titusville, Florida, where about 150 people were gathered for an event called Peace in the City. It was an anti-violence rally in response to the killing of a local man last month. The DJ for the event was livestreaming on Facebook at the time. InsideEdition.com's Mara Montalbano (https://twitter.com/MaraMontalbano) has more.