The suspect in the German car-ramming attack that killed five and injured more than 200 on Friday has been identified as Taleb al-Abdulmohsen, a self-described member of the “liberal opposition” to Saudi Arabia who has voiced strong anti-Islamic and anti-immigration views.

Two senior U.S. officials familiar with the matter identified al-Abdulmohsen as the suspect.

The car allegedly driven by al-Abdulmohsen plowed 1,200 feet into a crowd in a narrow alley in Magdeburg, a city of about…