Will Kenton is an expert on the economy and investing laws and regulations. He previously held senior editorial roles at Investopedia and Kapitall Wire and holds a MA in Economics from The New School ...

An Oklahoma principal who was shot in the leg while tackling a school shooter on Tuesday was hailed a hero for stopping the gunman and preventing a worse tragedy, officials said. Pauls Valley High ...

A heroic Oklahoma principal was shot in the leg while tackling a school shooter, according to authorities who hailed him for saving pupils’ lives. Pauls Valley High School principal Kirk Moore was the ...

Julia Kagan is a financial/consumer journalist and former senior editor, personal finance, of Investopedia. Thomas J. Brock is a CFA and CPA with more than 20 years of experience in various areas ...

Newly released video shows the moment an Oklahoma high school principal confronted and tackled a gunman after he opened fire inside the school. The footage shows Pauls Valley High School Principal ...

PAULS VALLEY, Okla. (KFOR)—New video shows the moment an armed former student walked into Pauls Valley school on April 7. Watch the new video above. The video shows the moment the armed suspect walks ...

An Oklahoma high school principal "saved kids' lives" last week when he tackled a gunman and was shot in the leg in the process, the local police chief said. Subscribe to read this story ad-free Get ...

PAULS VALLEY, Okla. (KFOR) – New video shows a principal tackling a gunman inside an Oklahoma high school after the former student opened fire April 7. Court documents obtained by Nexstar’s KFOR say ...

Newly released surveillance video shows an Oklahoma high school principal tackling a gunman in the school's lobby. Seconds after the suspect opened fire at Pauls Valley High School last week, ...

An Oklahoma principal is being hailed as a hero after tackling a gunman inside a high school earlier this month – a heart-stopping moment that was captured on video. Authorities said 20-year-old ...

OKLAHOMA CITY (KFOR) — A Pauls Valley High School principal is recovering after police say he confronted and stopped an armed former student inside the school Tuesday afternoon, taking a bullet while ...

IT is known that the spherical aberration of electron lenses sets a limit to the resolving power of electron microscopes at about 5 A. Suggestions for the correction of objectives have been made ; but ...