Nilsa Arizmendi, 33, was last seen on July 25, 2003, in Wethersfield, Connecticut, getting into a distinctive blue van. Six days later her sister filed a missing person report because Nilsa would not have left her four children. Investigators focused on a boyfriend but he was cleared and said Nilsa had left with a man known to them as Devin after the three had been using drugs.

That man was identified as William Devin Howell. Police traced a 1985 Ford Econoline van to Howell; in April 2004 they seized it and found blood soaked into the carpet. DNA testing later confirmed the blood belonged to Nilsa Arizmendi, a direct link between Howell and her disappearance. Howell was charged in May 2005 and in January 2007 pleaded guilty to first-degree manslaughter under the Alford Doctrine, receiving 15 years. Nilsa’s remains were not recovered until a wooded, swampy site behind a New Britain shopping plaza yielded multiple sets of remains; in April 2015 one of those was positively identified as Nilsa.

If anyone knew Nilsa’s movements that summer of 2003 or remembers the blue van, please share what you know.