Capítulo 32: Die Susie, die.

Aside from the information on his phone, Detective Shark also had pictures of his suspects, physical photographs that he had come with and he showed them to Phoebe, one by one. 

"Pinky, the girl on the right had a motive for murder because Susie seduced her fiancé last year and slept with him just to prove a point that she could. She has hated Susie since then and this could be why she killed her.

Lucy, the one in the green dress was originally supposed to be the lead singer of Dear girls but Susie apparently seduced the son of the company CEO who helped her secure the spot. The two have always had animosity for this reason. If Susie is out of the way, she can secure her position as lead singer of the group.