Shocking new details reveal how Trump shooter evaded Secret Service and cops THREE times - with one agent even taking a photo of him - before opening fire from top of building with counter-sniper team inside

A squad of constabulary snipers squad saw Thomas Crooks scouting their bid station 3 times successful nan minutes earlier he climbed connected apical of it and changeable Donald Trump from conscionable inches supra their heads, it has emerged.

Three constabulary marksmen from Beaver County were utilizing nan single-story AGR International building arsenic their watch-post erstwhile nan would-be assassin chose it arsenic his spot to sprout from, CBS reported.

And he whitethorn person been successful spot connected nan tile for up to 30 minutes earlier he unleashed his volley of shots that killed 1 man and astir took nan life of nan 45th president connected Saturday evening.

A rule enforcement charismatic told nan transmission said that nary action was taken aft 1 of nan snipers first spotted Crooks looking up astatine nan tile of nan building successful Butler, Pennsylvania, conscionable 130 yards from wherever nan president would speak.

The 20-year-old vanished astir a area earlier he was seen a 2nd time, sitting down and looking astatine his phone, prompting 1 of nan snipers to return his picture.

The sniper past radioed to a bid station aft seeing Crooks return retired a rangefinder.

But nary further action was taken earlier Crooks reappeared a 3rd time, this clip wearing a backpack and disappearing from show arsenic he walked to nan backmost of nan building.

A further power study relaying nan accusation was submitted by nan sniper squad who did not recognize that Crooks was now scaling their building.

Eight members of nan Beaver County Police Department had been tasked pinch securing nan outer perimeter of nan rally, while nan Secret Service concentrated connected nan rally itself.

Pittsburgh's WPXI reported that a Beaver serviceman took a photograph aft seeing Crooks connected nan tile astatine 5.45pm, by which clip he had already been photographed connected nan crushed by a colleague.

The last power study by nan three-strong sniper squad prompted State constabulary to nonstop reinforcements to nan building but it was not until 6.11pm that 1 climbed onto nan tile and saw Crooks pinch his rifle.

The serviceman from Butler County was forced to retreat erstwhile Crooks aimed his AR-style limb astatine him, and it was seconds later that nan slayer unleashed up to 8 shots, sidesplitting Pennsylvania occurrence main Corey Comperatore, critically injuring 2 others and hitting Trump successful nan correct ear.

It is not clear whether Crooks had nan firearm connected him erstwhile he was first seen extracurricular nan AGR International mill building, aliases if he stayed connected nan tile for nan full time.

But nan shocking caller allegations surfaced arsenic authorities and nan US Secret Service look mounting questions complete really Crooks was capable to sprout nan erstwhile president and termination a personnel of nan rally crowd. 

A horrifying video shows witnesses pointing astatine nan tile and shouting astatine officers trying to pass them. MAGA fans besides opportunity they alerted rule enforcement to Crooks arsenic he crawled to his shooting position, but he was still capable to shoot.

Law enforcement astatine nan arena successful Butler, Pennsylvania are facing aggravated scrutiny aft it was revealed nan tile was flagged arsenic a information 'vulnerability'.

Secret Service Director Kimberly Cheatle said connected Monday nighttime that she would not resign contempt mounting calls for her to measurement speech complete nan immense lapses that led to 1 of nan astir horrific acts of governmental unit successful history.

The section Pennsylvania sheriff defended nan constabulary serviceman who confronted Crooks connected nan tile seconds earlier nan shooting.

Butler County Sheriff Michael Slupe confirmed connected Monday that 1 of his equipped officers encountered nan gunman connected nan tile conscionable earlier he unleashed carnage connected nan erstwhile president's rally.

Slupe defended his officer's determination to retreat, telling KDKA he would 'have done nan aforesaid thing.'

'All I cognize is nan serviceman had some hands connected nan tile to get up connected nan roof, ne'er made it because nan shooter had turned towards nan officer, and rightfully and smartly, nan serviceman fto go,' Slupe added.

'I mean, group deliberation nan officers are supermen for illustration you clasp connected nan tile pinch 1 manus while you are hanging connected for beloved life and propulsion a weapon out. It doesn't activity that way.

Slupe besides said that members of his section were alerted to Crooks' suspicious behaviour earlier nan rally began and started searching for him correct away.

Local police, not nan Secret Service, swept nan building, but Crooks was still capable to climb to nan apical and return purpose astatine nan erstwhile president.

Slupe acknowledged that Crooks was successful nan 'secondary ring' of protection erstwhile he opened fire.

He said nan Secret Service is responsible for nan ringing instantly astir nan president, but section constabulary return power of nan outer ring.

The erstwhile president, 78, survived nan horrifying assassination effort erstwhile nan slug missed him by little than an inch connected Saturday afternoon.

It came 8 minutes aft he took nan shape astatine 6.03pm ET, wherever Trump began his remarks and pointed to a ample schematic successful nan aforesaid guidance wherever nan shooter was perched atop an AGR International building.

Even earlier he took nan stage, Trump supporters said they spotted nan gunman 'bear-crawling' crossed nan tile pinch a rifle, but claimed their warnings to Secret Service were ignored.

'I'm reasoning to myself 'Why is Trump still speaking, why person they not pulled him disconnected nan stage,''' 1 witnesser told nan BBC. 'The adjacent point you know, 5 shots ringing out.'

With nan sun still precocious connected a agleam day, Trump emerged to 'God Bless nan USA' playing complete nan loudspeakers astatine 6.03pm, and remained waving and shaking his fist astatine nan crowd for respective minutes.

Trump brought retired a ample schematic pinch statistic connected nan migrant situation astatine nan confederate border, and told nan crowd astatine 6.11pm: 'That chart's a mates of months old...'

'If you want to really spot thing that's sad, return a look astatine what happened,' Trump continued - earlier he abruptly grabbed nan broadside of his caput arsenic respective 'pops' filled nan arena space.

The 78-year-old dropped to nan level successful an instant arsenic 5 much shots rang overhead successful speedy succession, earlier 4 Secret Service agents raced to nan shape and dove connected apical of nan erstwhile president.

Stunning images showed Trump cowered connected nan level arsenic agents protected him, pinch humor dripping down his cheek.

Several much Secret Service agents continued to flood nan stage, while 4 heavy equipped officers lined nan perimeter ordering attendees to 'get down.'

The sniper, sat 400ft crossed from nan rally connected an exposed rooftop, fired different changeable astatine nan shape a 2nd later while Trump fans streamed retired of nan bleachers.

Secret Service officers scrambled to return power of nan pandemonium, and surrounded nan injured ex-president earlier getting him disconnected stage.

Officers changeable Crooks dead.