Gwyneth Paltrow testified in court on Monday (08.02.16) about her alleged stalker.
Dante Soiu was previously found not guilty of stalking Gwyneth by reason of insanity in 2000 and sent to a mental institution for several years.
However, after his release he has been accused of sending the actress up to 66 letters between 2009 and 2015, which she found "disturbing".
Just one day after supporting her ex Chris Martin and close pal Beyoncé Knowles during their performance at Super Bowl 50 in San Francisco, Gwyneth testified in court in Los Angeles about the letters.
Mr Soiu - who is accused of stalking the actress for 17 years - had denied all charges.
Gwyneth's testimony referred to letters and packages dating back to 1999 which she received from Soiu and contained pornography, earrings and a statement that he wanted to "excise her sin with a scalpel".
He also said he wanted to marry her.
Deputy District Attorney Wendy Segall said that Soiu has shattered the mother-of-two's sense of security. His lawyer said Soiu has simply written letters to Paltrow, and that recent letters haven't included pornography.
The trial continues in Los Angeles.