MILFORD - The admitted killer of a pregnant Milford woman back in 2001 was sentenced Wednesday to 20 years in prison.

Luis Rodriguez pleaded guilty last month to murdering Kelsey Monahan at the home Monahan shared with her husband. She was found tied up with a rope around her neck.

Investigators eventually drew a connection between the murder and Rodriguez, who was in prison in Oklahoma for a separate crime.

No conclusive motive in the killing has been established.