The trained staff responded to incident at Hertfordshire facility.
Nadeem Muhammad was stopped by airport scanners.
Prosecutors claim the female suspect may have taken on the life of the alleged victim.
The young guard was reportedly new to the job.
The local sheriff's office said other carnival workers confronted the man before authorities arrived.
Ciaran Maxwell made bombs for Irish Republicans and grew cannabis to supplement his income.
For almost two years Peter Fasoli was thought to have died in a fire.
Len Saunders was attacked by a teenager in St Helens, Merseyside, on 21 July.
Tim Reeves's body was dumped in the woods after he was killed with a single bullet to the head.
73-year-old David Turner was found guilty of breaching obscenity laws in a landmark ruling.
Gang of five Romanian men allegedly used a modified van to pull alongside and steal the cargo.
Tommy Roome was found guilty of the manslaughter of Ricky Hayden at the Old Bailey.
Police appeal for help finding female attacker who battered an elderly woman in Streatham Hill, London.
Inmates at HMP Gartree accessed residents' hotspots on their mobile phones.
Muhammad al-Maghrabi was executed under sharia law for raping and murdering a three-year-old girl.
The loggers were kidnapped and killed over local business row, local Philippine police chief said.
Edward Hanania, 23, has been jailed after one of the dogs died and the other was badly injured.
'Great job NYPD, the war on drugs is over now', one Twitter user chimed.
Video of crash scene on M11 shows flames spewing from crumpled wreck.
The theft came just a week after the 48th anniversary of the moon landing.
Three people have been arrested in connection with the murder.
Jamel Dunn leaves behind two daughters, aged 11 and six – the teenagers may now face charges.
Police carried out raids in Sydney over the weekend after four men were arrested for plotting to bring down a plane.
Westminster City Council seizes 40 pre-loaded IPTV devices.
The main accused is a unionist linked to the ruling Awami League.
The bust is thought to be one of the largest in recent years.
In 2013 Ali was sentenced to 14 years in jail, with 8 years on license.
Reynaldo Parojinog killed in clashes between police and mayor's gunmen.
Grey guests were able to save themselves by fleeing outside or hiding,police said.
West Midlands Police praise women for chasing the robber in a shop on Lozells.