By Tim Craig
The Washington Post
NEWTOWN, Conn. — State police officials said Thursday that it will take months to determine why Adam Lanza massacred students and staff at Sandy Hook Elementary School, as investigators struggle to assess his mental state before the shootings.
In the initial hours after the killing rampage one week ago, investigators said they had uncovered "good evidence" that would provide clues into what prompted Lanza's rampage.
But since then, police officials have become more guarded, bracing the public for a lengthy investigation that will stretch well into the new year. The extended investigation means Lanza's motive may not be known before President Barack Obama make a push for new gun control regulations.
Investigators are struggling to uncover clues in the case as relatives of the victims are burying the dead, which include the shooter's mother. On Thursday afternoon, 25 relatives gathered in New Hampshire to remember Nancy Lanza, who was shot multiple times in the head by her son before he killed 26 people and then took his own life at the elementary school.
Donald Briggs, chief of the Kingston Police Department in Nancy Lanza's hometown in New Hampshire, said the family will determine at a later date where to place her cremated remains.
Adam Lanza's body remains in the custody of the Connecticut Medical Examiner's Office as officials piece together the final weeks of his life.
"At some later date, there will be information about him," Briggs said.
Investigators' initial optimism for quickly identifying a motive in the case dimmed as it became apparent that Lanza had been reclusive, leaving few witnesses who knew him well.
Police also are trying to recover information from a computer hard drive that was found smashed in the home he shared with his mother.