The Manchester Arena suicide bomber is known to police by the name of Salman Abedi, and his home in south Manchester is being searched by police.

Officers have already mined substantial information from the investigation, they say.Abedi was in possession of a book entitled Know Your Chemicals, which police have removed from his home to study.Abedi was 22 years old, and he occasionally flew a Libyan flag in his back yard according to neighbors.

Abedi's family moved from Libya years ago to escape the Gaddafi regime, and Abedi reportedly returned in recent weeks.The Islamic State of Iraq and Syria has claimed responsibility for the attack, and ISIS remains active in the North African country despite losing critical strongholds in recent years.

Manchester Islamic Centre (Photo credit: Gerald England)

Salman reportedly attended Manchester's Didsbury Mosque where his older brother, Ismail, volunteered.At one time his father, Ramadan Abedi, regularly performed the call to prayer at the mosque, which was also known as the Manchester Islamic Centre.Trustee Fawaz Haffar describes the mosque as "moderate and modern" and says he has seen Abedi's father pray there.

"I see him praying but I don't know really who he is," Haffar says. "I see him sometimes raising the azan, or call to prayer, but that was a long time ago. As far as I knew he went back to Libya when things were much better over there, to work over there."