"According to an arrest affidavit, about 1 a.m. Thursday, Montgomery officers saw [American University professor David] Pitts set a chair on fire near a guard shack at his apartment complex’s parking garage."
"Then, the documents state, he lit a newspaper on fire in front of a Starbucks and then set a fire in the woods off Embassy Park Drive."
"Police said they then saw Pitts force his way into the mall, giving him access to a pharmacy, bank and several doctors’ offices. The officers called D.C. police, and Pitts was arrested after a brief chase from the third level of the mall into the parking garage."
"The arrest affidavit says Pitts had a white bag containing newspapers and an oily, black substance in a plastic bowl. Police said they found two lighters and matches in his pockets. Inside his apartment, the affidavit says, police found 5,431 prescription pills, including 2,310 Cialis pills, sedatives to treat insomnia and oxycodone."
The Washington Post has the story.