This undated handout image provided by the FBI shows the FBI's ten most wanted fugitive poster for William Bradford Bishop Jr. Bishop, diplomat suspected of killing his wife, mother and three sons in 1976 has been added to the FBI's list of "Ten Most Wanted Fugitives." Bishop Jr. allegedly bludgeoned his family to death in their suburban Washington home. (AP Photo/FBI)
FBI and Murrysville police search the suspect's house, who stabbed and slashed 21 students and a security guard at Franklin Regional High School, on Wednesday, April 9, 2014 in Murrysville, Pa. (AP Photo/Tribune-Review, Steph Chambers)
In this aerial photo taken from WTHR Chopper 13, FBI agents work around the home of 91-year-old Donald Miller in Waldron, Ind. on Wednesday, April 2, 2014. Authorities seized thousands of Native American, Russian, Chinese and other artifacts that have "immeasurable" cultural value from Miller's private collection, the FBI said Wednesday. The items, which also came from Haiti, Australia, New Guinea and Peru, were collected by Miller over eight decades, FBI Special Agent Robert Jones said at a news conference. (AP Photo/The Indianapolis Star, Kelly Wilkinson) NO SALES
In this aerial photo taken from WTHR Chopper 13, FBI agents work around the home of 91-year-old Donald Miller in Waldron, Ind. on Wednesday, April 2, 2014. Authorities seized thousands of Native American, Russian, Chinese and other artifacts that have "immeasurable" cultural value from Miller's private collection, the FBI said Wednesday. The items, which also came from Haiti, Australia, New Guinea and Peru, were collected by Miller over eight decades, FBI Special Agent Robert Jones said at a news conference. (AP Photo/The Indianapolis Star, Kelly Wilkinson) NO SALES
In this aerial photo taken from WTHR Chopper 13, FBI agents work around the home of 91-year-old Donald Miller in Waldron, Ind. on Wednesday, April 2, 2014. Authorities seized thousands of Native American, Russian, Chinese and other artifacts that have "immeasurable" cultural value from Miller's private collection, the FBI said Wednesday. The items, which also came from Haiti, Australia, New Guinea and Peru, were collected by Miller over eight decades, FBI Special Agent Robert Jones said at a news conference. (AP Photo/The Indianapolis Star, Kelly Wilkinson) NO SALES
In this aerial photo taken from WTHR Chopper 13, FBI agents work around the home of 91-year-old Donald Miller in Waldron, Ind. on Wednesday, April 2, 2014. Authorities seized thousands of Native American, Russian, Chinese and other artifacts that have "immeasurable" cultural value from Miller's private collection, the FBI said Wednesday. The items, which also came from Haiti, Australia, New Guinea and Peru, were collected by Miller over eight decades, FBI Special Agent Robert Jones said at a news conference. (AP Photo/The Indianapolis Star, Kelly Wilkinson) NO SALES