DALLAS — A Dallas man committed suicide after killing his roommate and opening fire on emergency responders, critically injuring at least two people on Monday. <br /> <br />According to the Dallas police department, the suspect Derick Lamont Brown was acting erratically at his home before fatally shooting his 67-year-old roommate in a backroom. <br /> <br />Brown then shot a neighbor who came outside after hearing the previous gunshots. He then opened fire at paramedics responding to the emergency. One of the paramedics was critically wounded. <br /> <br />Brown also opened fire at police officers at the scene, and only retreated to his home after being injured by officers. <br /> <br />A search robot was deployed later to search his home, where it found the suspect and the roommate dead. It is believed that Brown took his own life. <br /> <br />Brown has a criminal record that includes aggravated assault with a deadly weapon. He was also reportedly the national minister of defense for the New Black Panther Party.
