Austin Reed Sigg, a 17-year old Colorado native, has been arrested for the killing of Jessica Ridgeway, a 10-year old in his neighborhood whose body was discovered last Friday.
Jefferson County District Attorney Pam Russell told CNN that formal charges of murder and kidnapping will be brought against Sigg on Monday, and he will be tried as an adult.
Ridgeway disappeared on her way to school on October 5. Her corpse (described by authorities as "not intact") was found in a park just five miles from where she and Sigg reside in Westminster.
"We hope and pray that this arrest gives them some measure of closure in dealing with this horrible loss and tragedy they have suffered," Westminster Police Chief Lee Birk told reporters upon taking Sigg into custody.
He is due in court tomorrow at 8 a.m.
There's no word on how Sigg allegedly killed Ridgeway or how the tragic event transpired, but a tip alerted the police to his involvement.