"The high court will hear oral arguments Monday in the first examination of free speech rights and social media.
The outcome of the groundbreaking case, Elonis v. U.S., could decide the limits of what you post online."
updated 1:23 AM EDT, Thu April 19, 2012 (CNN) -- A Canadian man has been arrested, accused of coercing a 12-year-old girl to perform sex acts online by pretending to be pop star Justin Bieber. Toronto resident Lee Moir, 34, was arrested after police posed as a young girl and arranged to meet him.
"What has changed is the prevalence of cell phones equipped with cameras. Cell phone videos of alleged police misconduct have proliferated online, flooding social media websites and provoking questions about law enforcement behavior."
OMAHA, Neb. -- Police said a 15-year-old girl is missing after meeting a man on the Internet. Kaity Chrisman, a sophomore at Westside High School, packed her clothes and a blanket Tuesday night, and climbed through a house window, her family said. "My heart is broken," Chrisman's mother, Dori Kingery, said.
A North Charleston, South Carolina police officer, Michael T. Slager, was arrested on a murder charge Tuesday after video surfaced of the lawman shooting eight times at 50-year-old Walter Scott as he ran away.