Alex Is the main suspect

"You promised not to get involved." Diana said.

"Calm down Diana, I didn't."

"The guy mistook your name?" 

"I'm only worried about you, I heard people kept dying in that company." Ethan defended.

Ethan and Diana were in a hot argument. Diana kept hitting his chest and crying, while Ethan tried to calm her.

"You told me you will never get involved, you promised. I'm leaving this place." Diana said.

Ethan's heart sank and fear gripped his heart. He still felt assured since Diana is staying with him. How is he going to cope with her not being around him.

He quickly pulled her into his arms and hugged her tightly, breathing heavily from their heated conversation, "I didn't get involved in your work. I got involved in the well being of the woman I love." he said and held her still, not leaving room for escape.

"Don't trick your way out of this." Diana replied.

"I'm not. I'm only concerned about you."