Phoenix police used a national DNA database to arrest a man linked to multiple kidnapping and sexual assault cases dating back 27 years.

Abraham Ramirez, 54, was recently arrested in connection with four sexual assault and kidnapping cases that occurred in the Phoenix area from 1998 to 2013, police said.

The cold cases went unsolved for years.

“This arrest demonstrates the excellent work of our combined investigative and forensic teams and their unwavering commitment to those who experience sexual assault trauma,” according to Donna Rossi, communications director for the Phoenix Police Department, in a news release.

In each case, police collected DNA evidence from the victims and used it to create a DNA profile for an unidentified male suspect. The four incidents occurred between July

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