Marrisa Shen (October 20, 2003[1] – July 18, 2017) was a 13-year-old Canadian girl who was raped and murdered in a wooded area in Central Park, in Burnaby, British Columbia, Canada.

[2] Shen was reported missing by her parents on the evening of July 18, 2017, after she failed to return home from what was supposed to be a brief trip to a nearby Tim Hortons.

[4] There was little progress in the case for more than a year[5] and on the one-year anniversary of Shen's murder, her family issued a letter asking the public's assistance in locating and bringing her attacker to justice.

Shen's family reacted negatively to the defence's closing arguments in the courtroom, later releasing a statement that they were filing formal complaints against McCullough and his co-counsel, and seeking their disbarment.

Ali's court appearances were picketed by protesters calling for "comprehensive security screening" for refugee migration from Syria and to "hold Trudeau accountable.

"[27] Members of the Syrian-Canadian community also held vigils in remembrance of Shen, oftentimes alongside the protests opposing refugee migration from Syria.

[28] The discussion surrounding the killing became a significant point of contention during the February 2019 federal by-election for Burnaby South, with People's Party candidate Laura-Lynn Thompson integrating Shen's death into her anti-immigration platform.

[30] Additionally, Conservative MP Michelle Rempel invoked Shen's murder in a call for immigration screening review reform.