In Minnesota, federal officials have arrested a youth in connection with last week’s shootings that left 10 dead at the Red Lake Native American reservation. Until now investigators have said the shooter–16-year-old Jeff Weise–acted alone. Weise killed himself on the day of the rampage. Police have not said what role the arrested youth had in the killings. The New York Times identified the youth as Louis Jourdain, the teenage son of the Red Lake Chippewa’s tribal leader Floyd Jourdain Jr.