A prominent Sikh priest who was paralyzed during a mass shooting at a suburban Milwaukee temple in 2012, a hate crime in which six other people were killed, has died from his injuries.

The priest, Baba Punjab Singh, 72, died on Monday as a result of complications from a bullet wound to his head, said the Milwaukee County Medical Examiner, which ruled Mr. Singh’s death a homicide.

His death stirred painful memories of the shooting at the Sikh Temple of Wisconsin in Oak Creek, where a white supremacist with a semiautomatic handgun burst into the sprawling complex and opened fire before he was killed by the police.

Mr. Singh was shot in the cheek and the bullet exited through the back of his head, leaving him with an anoxic brain injury and unable to breathe on his own, according to the medical examiner’s report.