|Relationships:|| Robert Marcinko, husband|
Sally Marcinko, daughter
Her body chemistry required her to kill and feed on three young men every five years to keep from rapidly aging. She was known to have killed ten years ago in Albuquerque, New Mexico and five years ago in Phoenix, Arizona. She killed and fed on Ryan Showalter in Portland after Showalter became sexually aggressive towards her in his condominium, and her next victim was Anton Mengers, whom she killed in his hotel room. When she killed Showalter and Mengers, she had one of her fingers bit off and some of the fabric of her black dress torn off and found in the victim's hand, respectively. Surveillance video, along with prints from her finger, helped the police connect her to these murders. She also took Showalter's Rolex watch and gave it to her husband, but Sally, her daughter, took it to school and traded it for a bike.
When the watch was discovered, Nick and Hank went to the Marcinko's residence, where Nick saw Lena woged. She was preparing to kill her third victim of the year, Aaron, when Nick Burkhardt and Hank Griffin tracked her down, intervened, and captured her. Because she did not achieve her third kill, she began to age as she sat in her jail cell.
Lena did not seem to enjoy killing the men, as she appeared distressed and shaken before and after she would search for someone to help her maintain her beauty.