Update: Arrest Made. Security Guards reportedly stabbed and hit by car at the Basilica; Police in Standoff in Brightwood with Suspect

400 Michigan Avenue, NE

Full report from MPD:

“Detectives from the Metropolitan Police Department’s Fourth District have announced an arrest has been made in reference to an Assault with Intent to Kill offense that occurred on Tuesday, December 10, 2019, in the 400 block of Michigan Avenue, Northeast

At approximately 9:12 am, the suspect intentionally struck an adult female victim that was walking at the listed location. As an adult male victim came to the aid of the female victim, the suspect attempted to strike them both with the vehicle. The suspect then exited his vehicle and engaged in a physical altercation with the adult male victim. During the altercation, the suspect brandished a knife and stabbed the male victim. The suspect then fled the scene.

The adult male and female victims were transported to an area hospital for treatment of non-life threatening injuries by DC Fire and EMS. The suspect fled the scene in the vehicle and was apprehended a short time later by responding officers. The detectives’ investigation revealed that this offense is domestic in nature.

On Tuesday, December 10, 2019, 48 year-old Dorsey Lee Mack III, of Northwest, DC, was arrested and charged with Assault with Intent to Kill.”

“.@popville major MPD action up North Cap past McMillan — multiple cars, armored vehicles headed north w sirens. What’s up?”

Alan Henney first reported around 9:45am:

“update: STABBING at National Shrine of the Immaculate Conception— 400 Michigan Av NE-DC. 43yr-old man stabbed in chest and eye. Still alive. 2nd patient, 33yr-old woman, was struck by an SUV. She was pinned between 2 vehicles and briefly unconscious. Knife found at scene.”

“update: National Shrine of the Immaculate Conception— 400 Michigan Av NE-DC. 1 or both patients are possibly security guards. Suspect struck one w/ Lincoln Navigator, stabbed the second, then fled scene.”

“POSSIBLE ARMED STANDOFF— in the area of 14th St and Rittenhouse St NW-DC in the Brightwood Neighborhood. Massive police presence in area. Appears to be related to the National Shrine incident.”

NBC Washington reports:

“Two security guards were badly injured Tuesday morning at the Basilica of the National Shrine of the Immaculate Conception in Northeast D.C., and police are now in a Northwest neighborhood where the suspect has barricaded himself inside a home.

Both victims were taken to a hospital in critical condition.”