Denver police are searching the home of the student suspected of being responsible for the shooting at Arapahoe High School.
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Flaviu, a two-year-old Carpathian lynx, was reported missing from Dartmoor Zoological Park on July 7, triggering a search operation.
The report also said that many graduates do not even see a 'earnings premium' from their years at university.
The country's counter-terrorism forces have regained control of the facility.