48-year-old teacher rapes underage female student of all girls school for more than a year (video)

Sad student illustration 
By: Mahesh Sarin 

(Scroll down for video) A teacher was arrested on charges of sexual assault after allegedly having a sexual relationship with an underage student for more than a year, prosecutors in California said.

The Los Angeles County District Attorney’s Office announced that the former English teacher at an elite private girl’s school has been charged in connection with the rape.

48-year-old Joseph Koetters was arraigned on Thursday, at the Foltz Criminal Justice Center in Department 30. Koetters was booked and released on $140,000 bail.

Koetters taught English at the Marlborough School in Hancock Park, when he allegedly initiated a year long sexual relationship with a 16-year-old female student.

The victim reported the incident to police after learning about other alleged victims through a blog post on the Internet.

The Santa Monica resident is charged with two counts each of oral copulation of a person under 18 and sexual penetration by a foreign object.

If convicted, Koetters faces up to five years in state prison.