In this tutorial, we build an elastic vector database simulator that mirrors how modern RAG systems shard embeddings across distributed storage nodes. We implement consistent hashing with virtual ...

PIMA COUNTY, Ariz. -- The search for 84-year-old Nancy Guthrie, the mother of "Today" host Savannah Guthrie, began after she was abducted from her home near Tucson, Arizona, on Sunday, Feb. 1, ...

The Pima County Sheriff's Department and the FBI have fielded around 40,000 to 50,000 leads so far. Coverage on this live blog has ended. Follow live updates here. Ring camera founder speaks about ...

PIMA COUNTY, Ariz. -- The search for 84-year-old Nancy Guthrie, the mother of "Today" host Savannah Guthrie, began after she was abducted from her home near Tucson, Arizona, on Sunday, Feb. 1, ...

• DNA analysis: DNA on gloves found 2 miles from Nancy Guthrie’s Arizona home does not have any matches in the national database known as CODIS, and doesn’t match DNA found at Guthrie’s home, either, ...

An FBI official says investigative genetic genealogy is underway in the Nancy Guthrie investigation. This after DNA found on a glove matching the type worn by the subject seen in surveillance video ...

The 84-year-old mother of "TODAY" co-anchor Savannah Guthrie was last seen Jan. 31 when she was dropped off at her home in the Tucson, Arizona, area after a visit with her family. Coverage on this ...

Pima County Sheriff Chris Nanos admitted he’s only holding out hope Nancy Guthrie is alive because he hasn’t seen any “proof of death.” “They ask me, do I have proof of life? I ask them, is there ...

• Glove being analyzed: A glove found near Nancy Guthrie’s home appears to match the one worn by a suspect seen in her home’s doorbell camera footage, according to the FBI. DNA from the glove is being ...