Photos: 21-year-old Nigerian student stabbed to death in Ottawa, Canada, suspect arrested

A 27-year-old man is in custody and expected to appear in court later today after a 21 year old Nigerian student was stabbed to death in front of Piper's Bar and Grill in Otanwa, Canada.  

Staff Sgt. Bruce Pirt of the Otanwa major crimes unit said police are working to determine a timeline of events, and called on any witnesses to come forward. 

Investigators know something happened in front of Piper's Bar and Grill, but don't know if it started there, ended there or happened partway through.

Evidence markers peppered the pavement outside the bar, then curved their way across St. Laurent Boulevard to the Coventry Road median.

"We're not sure if it's all evidence but let's capture it, both on camera and physically, and we'll decide later on what really is evidence and what isn't. Right now let's keep the scene big and gather everything we can because we only have one crack at a scene." Pirt said.

Pirt said it's a big scene because they have to analyze all the blood and potential evidence, but they're trying to narrow it down.

"We do have some bloodletting that covered quite an extensive area, we have to make sure it's all connected to the same incident. As we investigate further we'll be able to tighten up that scene and make it smaller and smaller."

He added that police have been gathering video evidence from "a number of establishments" surrounding the crime scene.

More photos below...

Ottawa News/Ottawa Police