The appellant was raised in Toronto, where he became
friends with Mr. Barnett. When he was about 12, he relocated
with his family to Barrhaven, a community southwest of Ottawa.
He maintained contact with Mr. Barnett, who was close friends
with Mr. McLellan. Through a mutual friend, the appellant was
also acquainted with Mr. Swan, a well-known marijuana dealer.
At the time of his death, Mr. Swan was 20 years old and living
with two roommates in a rented home in Barrhaven.
 During the Christmas holidays of 2009, the appellant visited
his father in Toronto. While there, he socialized with Mr. Barnett.
According to a statement made to police by Mr. McLellan, he met
with the appellant at Mr. Barnett’s house and they first discussed
robbing Mr. Swan. The appellant stayed in Toronto until he went
on a ski trip with the Barnett family at some point after Christmas. The appellant returned to Toronto with Mr. Barnett early
in the New Year, before going home to Barrhaven a few days
later. Over the next six weeks, the appellant and Mr. Barnett
exchanged a number of text messages, but no evidence was
adduced at trial about the content of the messages pre-dating
February 21, 2010.
 On the evening of February 21, 2010, the appellant and
Mr. Barnett exchanged a series of text messages. At approximately 4:00 p.m., the appellant texted Mr. Barnett, “. . . when you guys
leavin?” At about 5:00 p.m., he sent a further text to Mr. Barnett
stating, “kk. Bring everything btw.” At approximately 6:00 p.m.,
the Toronto Three began driving to Barrhaven. Along the way
they exchanged texts with the appellant, including a request for
food. The appellant arranged to have food delivered to a friend’s
home, where the Toronto Three briefly met up with the appellant. At approximately 10:30 p.m., the food delivery was re-routed
to the appellant’s home, where the Toronto Three and the appellant waited for the arrival of their food.
 The Crown’s theory at trial, supported by the hearsay
statements made by Messrs. Mullen and McLellan, was that during the next two hours the appellant provided clothing and masks
to wear during the robbery and drove with the Toronto Three to
point out Mr. Swan’s Barrhaven house, which was obstructed
from the road by a line of trees.
 At approximately 12:30 a.m., the Toronto Three entered
Mr. Swan’s house. Messrs. McLellan and Barnett were armed
with handguns and Mr. Mullen was carrying a baseball bat. They
ordered Mr. Swan, along with his roommate, Tyler Tanguay, and
his girlfriend, Kaitlyn Scott, to kneel on the floor. The robbers
demanded to know the location of marijuana, cash and a gun.
Mr. McLellan then shot Mr. Swan in the back, fatally wounding