A gunman opened fire inside a Manhattan office tower Monday evening, killing NYPD Officer Didarul Islam and three others before dying by suicide, officials said. NBC’s Tom Winter joins #morningjoe with reporting on the suspect’s movements across the country, a note referencing mental health struggles, and questions around whether CTE may have played a role. Investigators say the shooter appeared to act alone. For more context and news coverage of the most important stories of our day click here:

Tag-uri: Islam