In late April 2012, 43-year-old Berta Rios Lopez was found stabbed multiple times and dead in her home on South Bryant Street in Denver. Investigators identified her estranged husband, Pedro Rios Lopez, as the primary suspect and obtained an arrest warrant for first-degree murder; he was believed to have fled the area. Berta’s two pre-teen daughters were not at home the night of the killing, having spent the night elsewhere.

The case remains unsolved and is now treated as a cold case by the Denver Police Department after years of attempts to locate Pedro Rios Lopez. Any new leads that could explain what happened or locate the suspect would be crucial for Berta’s family and the community.

If anyone knew Berta, her family, or saw Pedro Rios Lopez around Denver in April 2012, please come forward with information.