Mac and Stella gathered all the evidence they needed from the empty building, with help from Lindsey and Danny. Danny and Lindsey went back to the lab while Mac and Stella went to go talk to Alex and Joelle. Joelle answered the door, surprised to see the detectives.

" Ms. Richardson," Stella said.

" Detectives," Joelle said," What can I do for you?"

" Is Alex here too?" Mac asked.

Joelle nodded her head.

" May we come in?" Stella asked.

" Sure, I guess."

Alex came out of the bedroom as Mac and Stella came in, he didn't look happy.

" What now?" Alex asked," I think we told you all we could about Ethan."

" This is about your sister Amanda," Mac said.

Joelle sat down, not knowing what to think.

" What's she done? Where is she?" Alex asked.

" In the hospital," Stella answered," She was attacked by Emily McKenzie."

Joelle looked up.

" What?"

" Amanda called the lab and said she wanted to talk," Mac said," We found her barely conscious."

" Why would Emily attack her?" Alex asked," I don't get it."

" Amanda did date Ethan Crowley, didn't she?" Stella asked.

Alex shook his head.

" Not that again. Ethan wouldn't date my sister. I know he wouldn't. This doesn't make sense. Where is Emily?"

" In custody," Mac answered.

" Good at least you got something right," Alex said," Did she kill Ethan too?"

" We don't know for sure," Stella answered.

" Then go out and find them," Alex shouted," It certainly wasn't me or Joelle and Amanda wouldn't do it either. You need to do your job."

" Calm down," Mac told him," Your sister is in good hands. Now.."

" No," Alex said," No more. I don't want to talk about Ethan. We need to get to the hospital. I'm sure Amanda will want to know that everything is going to be okay."

" Mr. Crenshaw you are not out of this yet," Mac said," Ethan's murder is still under investigation."

" Get out," Ethan shouted," I didn't kill him."

Joelle got up.

" Alex, stop it. I can't take the shouting anymore. I can't do this anymore. Amanda did go out with Ethan and you know it."

" That's not what's important," Alex said," Ethan was still my best friend. So what if Amanda did?"

" You knew what he was like Alex. He broke plenty of hearts and Amanda was one of them. We have to tell the detectives what else we know."

" You want to more pain and suffering, especially for Clarissa."

Joelle shook her head.

" What do you need to say Ms. Richardson," Stella asked.

" The way Mr. Wallace acted around Ethan when Clarissa wasn't in the room. He hated Ethan and I swear that at times, he threatened him."

Alex then nodded his head.

" Joelle's right. Mr. Wallace knew what Ethan was like and he didn't want Clarissa to end up heartbroken. In the end she's going to be heartbroken all over again. Clarissa went upstairs that night and Mr. Wallace talked to Ethan outside. He told Ethan never to come around again. Ethan just said that Clarissa was an adult and could make up her own mind. Then we left. I don't know what happened after that."

Joelle again shook her head.

" This is so tragic. I don't want to believe that Clarissa's father had something to do with Ethan's death, but now I'm beginning to think he did. Either way, this isn't going to end well. Sorry we didn't tell you before, I didn't think it was important."

" It actually was. What you just told me gives us motive for murder," Mac told her.

" I apologize detective," Joelle said," Now what happens?"

" We keep going," Stella said," Thanks for your time, both of you."

Mac and Stella left the apartment.

" We need to go talk to Mr. Wallace," Mac said.

" One thing we don't have in this case yet Mac, is the murder weapon."

" I have a feeling we'll find it Stella, in the one place we never thought of looking."