One of Nick Fallon's earliest crimes on "Days of Our Lives" was swapping DNA test results that claimed both of Sami Brady's twins were fathered by EJ DiMera. Nick later became obsessed with his feelings for Melanie Jonas (Molly Burnett). He also developed a prescription drug addiction and was arrested for DUI. Nick's obsession with Melanie grew, and he began sending her creepy notes to manipulate her into leaving Salem with him. Nick held Melanie hostage until he was discovered to be Trent Robbins' killer and was arrested. Nick was sentenced to prison but later returned to Salem after getting paroled.

Nick tried to start his life over in Salem and ultimately fell in love with Gabi Hernandez (Camila Banus), and the two began dating. However, things got complicated when Gabi discovered she was pregnant with Will Horton's baby. Nick wanted to start a life with Gabi, so he proposed to her and blackmailed Will into signing over his rights to the unborn child. Nick and Gabi did get married, but Nick soon insisted they get an annulment when the trauma of being sexually assaulted in prison caught up with him, and he realized it had influenced their relationship.

After Nick got his mental health back on track, he hoped to reconcile with Gabi, but she just wanted to be friends. Nick couldn't deal with Gabi's rejection, and when he made unwanted advances on her in the woods, she hit him in the head with a rock and dumped his body in the river.

If you or anyone you know has been a victim of sexual assault, help is available. Visit the Rape, Abuse & Incest National Network website or contact RAINN's National Helpline at 1-800-656-HOPE (4673).