Despite a report in the Los Angeles Times claiming otherwise, the doors to Paris Hilton’s Sherman Oaks home were locked the day it was robbed, a source told Usmagazine.com on Monday.

“All of Paris’ diamonds, necklaces, rings, watches, old family heirlooms from her grandmothers was stolen,” the source told Us.

The heiress, 27, wasn’t at home when the burglar entered the house on Friday morning and took over $2 million in jewelry.

“They have the thief caught on tape since she has surveillance cameras set up in every room in her home,” the source said. “In the tapes the thief knows exactly where to go, almost like he’s been there before. Detectives are doing a big investigation and will catch this person.”

Meanwhile, Hilton isn’t taking any chances.

“Paris has upped her security team to three 24-hour bodyguards around the clock and has someone on her property at all times,” the insider revealed.

“According to detectives, a man wearing a hooded sweatshirt and gloves forced entry into the front door, ransacked her bedroom and took an undisclosed amount of property and fled the scene,” Los Angeles Police Department spokesman Richard French told Usmagazine.com on Friday.

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