1. Murder-Suicide

    Three Marines Dead After Quantico Shooting

    Marine Corps Base Quantico. (Cpl. Antwaun L. Jefferson/US Marine Corps, via AP)

    Three are dead after a shooting at Quantico Marine Corps Base in Virginia on Thursday night. All the victims were Marines, including the shooter, who took his own life. After the first person was shot around 11 p.m, authorities and the gunman—believed to have been a staff member at the base’s officer-candidate school—engaged in a standoff, with the suspect barricaded in the barracks. When the authorities finally entered the barracks early Friday morning, they found the shooter and another victim dead inside.

    Read it at CBS News