A spokesman for the family said Monday that Peter Lanza claimed the remains of Adam Lanza. He didn't say when the remains were claimed.
The 20-year-old Adam Lanza killed 20 first-graders and six adults at the Sandy Hook Elementary School on Dec. 14. He also killed his mother in their Newtown home before going on the rampage and then committing suicide.
A private funeral was held earlier this month in New Hampshire for his mother, Nancy Lanza, who was divorced from Peter Lanza.
Peter Lanza lives in Stamford, Conn., and is a tax director at General Electric.
Police have not offered a motive for the killings.
Copyright 2012 The Associated Press.