The suspect allegedly threatened to rape Jewish women and encouraged others to shoot people outside synagogues.

The FBI said the Beverly man posted threats to rape Jewish women and encouraged others to shoot people outside synagogues.

Police said Luigi Mangione, the man charged in the killing of UnitedHealthcare CEO Brian Thompson, appears to have had a ghost gun, a weapon that can be made using a 3D printer.

"The pistol had one loaded Glock magazine ... similar to a Glock 9mm with no background check or waiting period. Kits online are available for everything from handguns to AR-15s and AK-47s.

There are kits for a dizzying variety of firearms, including Glock 9mm pistols, AR-15 and AK-47 assault rifles, and shotguns. Ghost guns are easy and relatively inexpensive to assemble.

A Columbus man pled guilty to firearm charges on Tuesday after the U.S. District Attorney’s Office says he was advertising ...