They very subtly suggest it here: "In the wake of the attacks several Oakland city council members including Council President Nikki Fortunato Bas, whose district includes Chinatown, have joined social justice groups warning against scapegoating and calling for solidarity between Asian American and African American communities."

What I find more interesting though is this passage: "It's not clear, however, that race or ethnicity played any role in the attack. "There is no evidence of motive related to hate," says the DA's spokesperson, Rachel Marshall, adding "the case is still under investigation.""