Okay, I will do the following edit if no one refutes the substance of it, referencing the Vanity Fair article, and has the section read: 
Theresa Duncan was found dead on July 10 2007. The official cause of death was suicide as a result of the combined ingestion of diphenhydramine and alcohol. Her longtime boyfriend and artistic partner Jeremy Blake is believed to have killed himself a week later, having been seen by an anonymous 911 caller walking into the Atlantic Ocean near Rockaway Beach. His body was found five days later off the coast of New Jersey. According to friends of the couple, Jeremy and Theresa believed that they were being followed and harassed by Scientologists up to the point of their deaths.