.45 Caliber Gun
A display of 7-round .45 caliber handguns are seen at Coliseum Gun Traders Ltd. in Uniondale, New York January 16, 2013. President Barack Obama proposed a new assault weapons ban and mandatory background checks for all gun buyers on Wednesday as he tried to channel national outrage over the Newtown school massacre into the biggest U.S. gun-control push in decades. Reuters

Pittsburg Police arrested over the weekend 16-year-old Maxwell Marion Morton for killing his classmate Ryan Mangan. Morton made the mistake of taking a selfie with Mangan’s corpse and posting the image on social media.

He probably thought that since Snapchat, the app where he posted the selfie, auto-deletes contents after a few seconds, there would be no evidence against him. Morton sent the selfie to a friend who took a screenshot and showed to his mother, reports BBC.some

According to a police affidavit, the copy of the photo which showed Mangan sitting on a chair with a gunshot wound on his face, reports The Pittsburgh Tribune-Review. Morton is seen facing the mobile phone camera and Mangan was behind home.

Besides the selfie, another proof that it was Morton were the words on top of the Snapchat image “Maxwell across the top.”

Other evidence that police would use against Morton as proof the murder, of which he would be charged as an adult, are text messages to the same friend, including one that states “Ryan was not the last one.”

Morton had actually confessed to the crime after the police found in his possession 9 mm handgun. He probably missed or ignored the alert sent by Snapchat that someone made a screen capture of his incriminating selfie.

To contact the writer, email: v.hernandez@ibtimes.com.au