Webseveral people were injured saturday evening after a large crowd of attendees fled a baltimore pride event where a possible chemical agent was released. Webbaltimore pride event disrupted by possible chemical agent, causing panic and injuries. A possible chemical agent was released in front of the main stage at the. Webthe “chemical agent” released at a baltimore pride event on saturday evening was determined to be mace, injuring three people, baltimore police confirmed. Webbaltimore police confirmed the “chemical agent” released at a baltimore pride event on saturday evening was mace, but the sequence of events left some. Webbaltimore — baltimore police are investigating a chemical agent released during the baltimore pride parade festivities. On saturday, police said they.