Peter Damian Arguello, a jeweler in the Denver suburb of Wheat Ridge, was found dead inside his store in November 2023.
Dominion Diamond CEO Steps Down
Patrick Evans was appointed to run the Canadian mining company after its acquisition a year ago.

Missoula, Mont.—The CEO of Dominion Diamond Corp. has left the company after a year in the job.
A spokeswoman for the Canadian diamond miner confirmed Tuesday that Patrick Evans resigned, and Chief Operating Officer Shane Durgin has been appointed CEO in his place, effective Friday.
The company did not elaborate on Evans’ departure and did not comment on a Bloomberg report detailing an “executive exodus” at the company. Bloomberg noted that Evans is at least the third high-ranking executive to leave the company in less than a year.
Evans became Dominion’s CEO in November 2017, after The Washington Companies’ $1.2 billion acquisition of Dominion closed. The purchase took the once-public diamond mining company private.
Dominion is the third largest producer of rough diamonds in the world, trailing only Alrosa and De Beers.
The company has two diamond mines, Ekati and Diavik, both in Canada’s Northwest Territories.
The Ekati Diamond Mine is expected to produce through 2034, though The Washington Companies said it would invest in projects that would potentially expand the mine’s life to 2042.
Diavik is operated in partnership with Rio Tinto. Dominion and Rio Tinto sunk a total of $350 million into construction of a new pipe at the mine, which opened this summer and will help it sustain production.
Diavik is expected to operate through 2023.
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