Eva Arenas is a character in DEXTER. She is the mother of Rafael Arenas and Marissa Arenas, as well as a convicted drug user. Following her son's murder, she becomes very hysterical and emotional unfortunately also making her a target of the Twenty-Ninth Street Kings when she agrees to testify against Little Chino, the man suspected of killing Rafael as well as at least nine other people (in addition to two witnesses killed for the trials against him). She's first introduced when she charges onto a crime scene screaming the name of her deceased son while collapsing into the arms of Dexter Morgan, begging for him to get justice by killing the man who did this. She later tells Angel Batista in an interview that her son was forced to go with Chino the night of his murder and she agrees to tes