Brandon Clark, 21, stabbed himself in the neck before police took him into custody.
Authorities think Jacqueline Crayton, then 71, suffered a non-life-threatening fall in 2016 and died a few days later.
Southern California Gas Company confirmed that one of its employees died in the blast at the Murrieta home.
A federal magistrate denounced the "particularly egregious and reprehensible nature" of Andrew Anglin's anti-Semitic intimidation of a Montana woman.
Many residents of the Indiana city were angry Sgt. Ryan O'Neill's body camera — part of a program launched by Mayor Pete Buttigieg — was turned off during the shooting.