Police are currently carrying out a search at flats in Stafford, where he is believed to have lived.
A man and woman were killed in the attack, and three others were injured and remain in hospital.
The Queen released an official statement following the attack.
She said: “Prince Philip and I have been saddened to hear of the terror attacks at London Bridge. We send our thoughts, prayers and deepest sympathies to all those who have lost love ones.
“I express my enduring thanks to the police and emergency services, as well as the brave individuals who put their own lives at risk to selflessly help and protect others.”