Investigators: No motive found in Newtown shooting

US investigators said Monday that they failed to find a motive for last year’s Newtown school massacre, but said the killer had “significant” mental problems. The official report into the December 14 killings at Sandy Hook Elementary School revealed Adam Lanza’s disturbing behavioral problems. The 20-year-old was obsessed with firearms and mass murders, lived as a recluse, suffered from Asperger’s Syndrome but refused medication. The report said evidence showed he planned his actions, but there is “no clear indication why he did so.” Lanza first killed his mother before gunning down 20 first-grade students and six adults in the elementary school. He then turned the gun on himself. The Sandy Hook killings renewed emotional debate about gun control in America but resulted in little reform.

Read the full story on Rappler.