Simon Cowell came face-to-face with a female intruder who broke into his $14 million London home Saturday night, a Scotland Yard spokesman has confirmed.

The British music mogul was watching TV at 10 pm when he was confronted by over-zealous fan, Leanne Zaloumis.

"It was absolutely terrifying," the 52-year-old told the Daily Mirror. "She could have had a gun."

More disturbing testimony in the penalty phase of convicted Petit family killer Joshua Komisarjevsky's trial emerged on Wednesday as his former pastor took the stand, RadarOnline.com is reporting.

In testimony that was delivered like a church sermon, Bryce Whiting told the New Haven, Connecticut court how when Joshua was a teenager the convicted triple-murderer claimed he saw a "specter, a dark spiritual being" that had "glowing eyes" and was "menacing in his appearance," reported the Hartford Courant.

As RadarOnline.com previously reported, Komisarjevsky was found guilty of 17 counts on October 13 for the grisly murders of Jennifer Hawke-Petit and her daughters, Hayley, 17, and Michaela, 11, and the vicious beating of their father, Dr. William Petit, on July 23, 2007. The same jury who convicted him is now deciding whether he serve life in prison or gets the death penalty.

In the days before he took part in on of the most horrific murders in Connecticut history, Joshua Komisarjevsky spent his time surfing hundreds of porn sites, according to his mother, RadarOnline.com has learned.

The convicted triple murderer is currently beginning his second week in court for the penalty phase of his trial as a New Haven, Connecticut jury decides if he spends the rest of his life in jail or joins accomplice Steven Hayes on death row.

As RadarOnline.com previously reported, Komisarjevsky was found guilty of 17 counts on October 13 for the grisly murders of Jennifer Hawke-Petit and her daughters, Hayley, 17, and Michaela, 11, and the vicious beating of their father, Dr. William Petit, on July 23, 2007.

Sat across the courtroom from the boy that she adopted who grew up into a convicted triple murderer, Jude Komisarjevsky gave jury members debating whether he should be sentenced to death, an insight into his childhood, RadarOnline.com has learned.

Jude was brought to the stand by the defense on the third day of the penalty phase of Joshua Komisarjevsky's trial that will determine if he gets the death penalty or life in prison.

PHOTOS: Petit Family Murderer’s Transformation From Kid To Killer

As RadarOnline.com previously reported, Komisarjevsky was found guilty of 17 counts on October 13 for the grisly murders of Jennifer Hawke-Petit and her daughters, Hayley, 17, and Michaela, 11, and the vicious beating of their father on July 23, 2007 in their Cheshire, Connecticut home.

As the death penalty phase of the trial for convicted killer Joshua Komisarjevsky begins on Tuesday, it is his accomplice in the Petit family murders who has made a shocking confession in a series of chilling letters, RadarOnline.com has learned.

Steven Hayes, who was convicted last year for his part in the Cheshire, Connecticut home invasion that spiraled into a triple homicide, is awaiting execution on death row and wrote to a woman from prison claiming he was "sharing a dark secret,” reported the New Haven Register.

The 48-year-old convict described with relish how he had tied up and killed two women and admitted to murdering many more.

Oscar winner Nicolas Cage has revealed he once chased a naked stranger from his house!

The Leaving Las Vegas star  -- speaking at a news conference at the Toronto film festival  for his new film Trespass -- said: "I have lived through the nightmare, I have been one of those people who has been through a home invasion.

"I was living in Orange County in Los Angeles at the time, I was asleep with my wife, my two-year-old at the time [Kal-El] was in another room.

PHOTOS: Stars Who Have Been Stalked

"And I opened my eyes and there was a naked man in my leather jacket eating a Fudgesicle [ice lolly] in front of my bed.

Paris Hilton will be testifying this week against the knife wielding man that tried to break into her Beverly Hills mansion last year, RadarOnline.com has exclusively learned.

Nathan Parada's felony burglary trial will begin on Monday in a Van Nuys, California courtroom.

PHOTOS: Paris Hilton Arrives In LA From NY