A Fontana police corporal has solved what authorities say is the oldest cold case ever successfully prosecuted in San Bernardino County — securing a conviction 45 years after 18-year-old Michelle ...

TUCSON, Ariz. — Investigators looking to track down Nancy Guthrie’s suspected kidnappers are turning to a relatively new technology that has been attributed to solving some of the most prolific ...

Researchers used algebra and geometry together to solve an old random walk problem. Random walk ideas have informed everything from biology to video games. This team identified a key geometry idea ...

Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Thomas J. Brock is a CFA and CPA with more ...

Christina Majaski writes and edits finance, credit cards, and travel content. She has 14+ years of experience with print and digital publications. Robert Kelly is managing director of XTS Energy LLC, ...

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