Marrisa Shen's homicide was a 'random' attack, police say

One week after a 13-year-old girl was found dead in the park near her Burnaby, B.C., home, investigators are warning the public that Marrisa Shen's homicide appears to be a randomattack.

"Her death was random. Her murder was random," said Cpl. Meghan Foster of the Integrated Homicide Investigation Team.

The teenager was reported missing by her family late on July 18, after leaving their apartment building near Burnaby's Central Park at 6:02 p.m. PT.

• Marrisa Shen: A timeline of her disappearance

Police found the girl's body in park brush seven hours later.

When asked if there was a "killer on the loose," Fosterwould only repeat, "we have no suspects at this time."

Foster wouldn't discuss any evidence in the case, including why police are now describing the killing as random, whether a stranger is suspected, or whether a sexual assault took place.

An autopsy has been conducted, but police have not said how the girl died.

"Marrisa's death was senseless," said Foster.

"These events have caused great distress and sparked much concern about safety in the community."

Police urge caution in park

Since Shen's death last week, RCMP have been telling parents to talk to their kids about safetyand warning the public to be vigilant.

Today, Supt. Chuck McDonald stepped up those warnings, saying specifically people should "exercise caution around here," meaning the popular86-hectare urban park where Shen's body was found.

There remain general duty officers, bike patrols, community response teamsand plainclothes officers as well as homicide investigators in the park, McDonald said.

• 'I can't believe she's really gone': Family and friends mourn Marrisa Shen
• Suspicious death of 13-year-old under investigation in Burnaby

McDonald called the homicide a "crushing blow to the community."

"I lost my daughter for about fifteen minutes at the PNE when she was two," said the senior officer. "I can't imagine what it's like to have your daughter taken away under these circumstances."

McDonald advised the following for personal safety:

• Be aware of your surroundings.
• Stay visible and stick to well-lit areas.
• If you think someone is following you, switch directions or cross the street.
• Don't be afraid to yell or call 911.

Any 'insignificant' detail helpful

Seven days after Shen's body was found, there remains a seven-hour window between the girl's last known location and the discovery of her body.

Surveillance video confirms she left her apartment building at 6:02 p.m. seemingly "OKand not in distress" at that time, said Foster.

Police are imploring people who were in the area that night to help them piece together more evidence.

They want photos and videos, including from dash cameras, of anything in the area that night even if it seems unrelated.

"No matter how insignificant you think it might be," said McDonald. "No need to screen the video looking for anything ... we can add that to our database. That's really important."

Anyone with information is asked to contact IHIT at 1-877-551-4448, by email at ihitinfo@rcmp-grc.gc.ca, or, if they wish to remain anonymous, Crime Stoppers by phone at 1-800-222-8477.