Who was The Lycan?

Introduction
This is a mystery surrounding the Lycan that attacked the group on their way back to the Academy. This resulted in the fight between the Lycan and Callum.

Set-up
While on their way back to the Academy, Ashley West, Ashton Moore, Reginald Denham, Callum Denham, Florence Gale, and Mary Cassel were stopped by a Lycan, causing them to crash. In defence, Callum transformed into his wolf form and fought the Lycan while the others escaped. The Lycan ran off and Callum then retreated.

Answer
The Lycan later turned out to be Joshua Hamilton, who was trying to capture Mary and bring her to Salem to be sacrificed and begin the resurrection of the Witches of Old Salem.