The long-cold case of the murder of 18-year-old mother Noemi Roman, whose infant son was left beside her blood-spattered body, may have finally been solved when the suspect goes to trial this week.

Kurvin Richardson, 38, of Roxbury, was arrested in June 2005, 15 years after the murder, and he finally goes to trial Monday, authorities said.

Firefighters responding to a gas leak call found Roman’s stabbed and beaten body in her apartment on May 31, 1990. Aerosol cans were found in Roman’s stove, which was turned on.

Police said Richardson was nailed down as the suspect using DNA evidence, which wasn’t admissible in courts in Massachusetts until 2005.

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