A girl reported that she saw a man masturbating in the Newton Free Library on Sunday, March 2.
She said she was studying in the library’s teenage section on the second floor when she saw a man masturbating.
She was shocked and told her sisters not to turn around, according to police.
The girl believes the man heard her say that and he left the library.
The man is described as being between 40 and 50 years old, balding and is described as having a big nose.
He was wearing a brown long-sleeve T-shirt, khaki pants and brown hiking boots.