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 ...

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 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 ...

A former high school principal in Columbia County was sentenced to just over five years in prison last month for possessing and sharing images of child sex abuse. Jeremy P. Williams, a 50-year-old ...

A former Oregon high school principal who had already been sidelined over controversial comments about slain conservative activist Charlie Kirk is now headed to prison in a child sex abuse images case ...

Abstract: Robust tensor principal component analysis (RTPCA) based on tensor singular value decomposition (t-SVD) separates the low-rank component and the sparse component from the multiway data. For ...

Abstract: As a domain-dependent prior knowledge, side information has been introduced into Robust Principal Component Analysis (RPCA) to alleviate its degenerate or suboptimal performance in some real ...