America has just witnessed what has been described as “deadliest mass shooting” in its history. More than 50 people have died while over 400 were left wounded after a gunfire was opened on a country music festival in Las Vegas.

The Route 91 Harvest Festival was in its third and final day and country music singer, Jason Aldean was on stage performing to a crowd of over 22,000 when sporadic shooting began at about past 10pm. Aldean ran off the stage while the crowd scampered in multiple directions.

The gunman was found dead in his hotel room on the 32nd floor of the Mandalay Bay Hotel from where he opened fire. Along with his body, police discovered “at least 10 rifles” in the hotel room where he had reportedly been staying since Thursday.

Las Vegas Sheriff, Joseph Lombardo named the gunman as Stephen Craig Paddock, a 64-year-old white male. Paddock was said to have been travelling with his roommate, a 62-year-old Asian female, Marilou Danley who had initially been declared a person of interest but was later found to be out of town at the time of the incident, TIME reports.

Although Islamic terrorist group, ISIS has claimed responsibility for the attack stating Paddock converted to Islam months ago, authorities earlier said there is no evidence to proof the lone wolf had any links to the organisation. Lombardo said, “Right now we believe he is the sole aggressor at this point and the scene is static”.

At 64, Paddock has been described as the oldest mass shooter in US history. According to Telegraph UK, he lived in a retirement village in Babbling Brook Court in Mesquite, Nevada, 90 minutes outside Las Vegas.

“Paddock was the son of Benjamin Hoskins Paddock, a serial bank robber who ended up on the FBI Most Wanted list back in 1969 when he escaped from federal prison in Texas while serving a 20 years sentence”, Daily Mail writes. His father’s record regardless, no criminal records could be traced to Stephen Paddock in Nevada.

His brother, Eric Paddock expressed shock at the news, “We are completely dumbfounded. We can’t understand what happened”.