Investigators were trying to piece together the last movements of suicide bomber Salman Abedi, a Manchester-born university dropout whose parents had reportedly fled the now fallen regime of Libyan dictator Muammar Gaddafi.
British police say they are now confident they know the identities of all the people who lost their lives in Monday's concert attack in Manchester. Price tags on the rucksack indicate it had just been purchased, they said.
According to the disturbing photos, Abedi appeared to have carried a power IED in a lightweight metal container.
The pictures in the New York Times (NYT) show torn scraps from a blue Karrimor rucksack as well as screws and nuts used as shrapnel and a metal item which the newspaper suggests could have been part of the bomb's detonator.
It also published a diagram showing most of the fatalities occurred in a circle around the bomber, which it said indicated a powerful, high velocity charge.More news: South Korea Wants to Reopen Communication With North
Bomb disposal technicians who reviewed the images for The New York Times said that a more thorough analysis of the device was hard without more information, and that assessments of the bomb could change as authorities analyse it further and if they collect more evidence. Authorities found a Yuasa 12-volt, 2.1 amp lead acid batter at the scene.
Britain's interior minister, Amber Rudd, said Abedi had recently returned from Libya and her French counterpart, Gerard Collomb, said he had proven links with Islamic State and had probably visited Syria too.
So far there have been seven arrests - two in Tripoli, of Abedi's father and brother, and five in the UK.
Officials have also said that Salman also had a younger sister named Jomana Abedi, meaning Salman would be one of four siblings.
The elder Abedi denied that he was part of the militant group and told The Associated Press that his son was not involved in the concert bombing and had no connection to militants.More news: Police hunt Manchester bomber's network
Abedi attended Burnage Boys' School in south Manchester from 2009 to 2011, the school confirmed.
Manchester United players will wear black armbands at yesterday evening's Europa League final against Amsterdam club Ajax in Stockholm, where a minute's silence will be held.
Six people who died in the horrific attack Monday have been identified - they include an 8-year-old girl and two teenagers.
"No one really interacted with him", Kinsey said.More news: Chicagoans celebrate as Manchester United wins soccer championship
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