'He went up there to investigate and as he was doing his job diligently, he came under fire from our suspect.
'He was struck in the leg, and he turned around retreated.
'In the past, terror attacks or mass murder cases, motive was made very clear by a note that was left by a social media post, by a telephone call that was made.
'Today, in our investigation, we don't have any of that uncovered.
It is made out of ammonium nitrate and aluminum powder.
Mc Mahill said he did not know what Paddock planned to do with the material but said it had not been modified in anyway to turn into an IED as was reported.
But at the press conference on Friday, Mc Mahill said detectives were no closer to understanding what motivated Paddock's killing spree.'To date we have run down well more than 1,000 leads in this investigation.
A picture is slowly emerging of how he deteriorated into a gambling addiction in recent years, at times blowing 0,000 a time on video poker.Undersheriffs said they are still 'days away' from being able to tell the survivors when they can collect personal items that were left at the scene.Above, piles of organized items including a strollers and wheelchairs are seen lined up into various piles of evidence In August, he rented hotel rooms overlooking the Lollapalooza festival in Chicago which Malia Obama attended with friends.He also dismissed claims that someone else accessed the room using Paddock's key card while his Hyundai was not in the parking lot.Detectives are working through 'voluminous' amounts of surveillance footage from inside the hotel, he said, but have so far not been able to find any other suspect.