Alan W. Filion, 18, of Lancaster, entered the plea to four counts of making interstate threats to injure the person of another, the U.S. Attorney’s Office for the Middle District of Florida said in a news release. He faces up to five years in prison on each count. A sentencing date has not yet been set.

A Lancaster teen accused of making hundreds of swatting calls ... Get top local stories in Southern California delivered to you every morning. Sign up for NBC LA's News Headlines newsletter. Filion, 16 at the time most of the calls were placed, sought ...

A Lancaster teenager pleaded guilty Wednesday to making hundreds of “swatting” calls targeting religious institutions, schools and government officials with false threats of mass shootings, bombings and other violent crimes.