The security guard, Mohammed Agha, said he didnt have a walkie-talkie and feared losing his job if he left his position.
Agha was only 19 years old and it was his first shift working for Showsec at the Manchester Arena - earning the min wage on the same night Salman Abedi detonated a bomb at an Ariana Grande concert.
15 minutes before the attack, a member of the public, Christopher Wild, had alerted him to a suspicious male carrying a rucksack. Wild told him he had asked the man what he was doing, and he had replied that he was waiting for a friend.
Giving evidence at the Manchester Arena inquiry on Monday, Agha said he had already noticed the man, who turned out to be Abedi. He said he first noticed Abedi’s trainers, which he liked, and then Abedi’s rucksack, which was “quite big – it was like a camping rucksack”.