Ownership
On the first day that Martin stepped into Leigh Group of Companies, the first thing he did was account all the money and properties Aviona had that was tied with the company. Although he took Aviona's position with the intention of getting a hold of her money, he still didn't want to drain it because right then, LGC was the only thing he can boast off to Manuel. Aside from that, such company was Aviona's legacy and for her sake, he wanted to manage it well. That was also the reason why he didn't want Margo to have it, he simply didn't trust her capabilities.
He can do everything for Aviona so long as she can stay by his side forever. Martin was a good man, only that with it comes to Aviona, he was a little too obsessed. When Aviona gets into the picture and conversation, Martin cannot anymore control his temperament and for that, he becomes violent. Aviona was his turning point, the one that can make him wildly insane in an instant.