DC Monuments Attacks

The National Cathedral is one of four DC landmarks vandalized in the past few days and so far, one person is in custody in connection with one of the crimes. However, authorities are still investigating whether that same person is responsible for the rest, and there are still a lot of unanswered questions, CNN's Pamela Brown reports.

On Monday, cleaning crews spent the night scrubbing green paint off an organ and a wall inside two National Cathedral chapels.

Police arrested Tian Jiamel and charged her with defacing property. A law enforcement source says the 58-year-old woman was found carrying a green paint can when she was arrested.

It is still unknown if the suspect is linked to the vandalism of three other DC landmarks in recent days. On Friday, authorities discovered green paint splattered on the Lincoln Memorial

Authorities then discovered what looks like green painted symbols on the statue of Joseph Henry, the first secretary of the Smithsonian. Adding to the mystery, green paint was discovered on a statue of Martin Luther at a DC church, a day before the National Cathedral incident.

Officials are still investigating whether the vandalisms are linked, or if these are copy cat crimes.