Shephard has been sentenced to four months in jail.
The 19-year-old reportedly remained silent during the reading.
One of the Three Suspects in a Brutal Moncton Murder Trial Has Been Convicted of First-Degree Murder
Some of the jury members on the case reportedly cried after delivering the verdict.
In court Monday, police tapes of Devin Morningstar detailed the violence that started the long Canada-wide hunt for 20-year-old fugitive Marissa Shephard.
Those arrested with Shephard have been charged with aiding her. The 20-year-old woman has avoided police for more than 10 weeks.
Shephard was on the run for 10 weeks following the death of Baylee Wylie.
Meanwhile, co-accused Marissa Shephard, 20, remains at large.
Police described the New Brunswick woman as someone who can easily change her looks.
RCMP Issue Canada-Wide Warrant for Young Duo Wanted in ‘Extremely Violent’ Murder of 18-Year-Old Man
The body of Baylee Wylie, 18, was found after a house fire in Moncton.