The World, and Everything in it: Country bar gunman 'posted on Instagram during massacre'

Police found Ian Long's Instagram on Wednesday night after he opened fire on Borderline Bar and Grill
He had been updating his Instagram story as he fired shots inside the bar, killing 12 people
His Instagram page and his Facebook page, where he spoke about gun control, have both been deleted
He was dressed in all-black and used a legally owned Glock.45 handgun which had an extended magazine
Witnesses said he also let off smoke grenades inside to confuse the terrified crowds as they ran for their lives
In April, police and mental health specialists were called to Long's home after neighbors heard crashes inside
One neighbor said they heard a gunshot and there was a bullet hole in the wall afterward
Long, they said, holed himself up inside the home for several hours and had to be coaxed outside by police
Long was a Marine combat veteran who served as a machine gunner in Afghanistan and may have had PTSD
But neighbors said he behaved oddly before his military service, and he wrote 'death' as his HS yearbook goal
Long killed himself on Wednesday in an office in the bar after killing 11 in the bar including a sheriff's sergeant

The World, and Everything in it