"People I've never heard of": In the context of the article, the phrase "people I've never heard of" refers to the individuals mentioned by the author as examples of people who have been killed due to police brutality but have received relatively less media attention compared to Michael Brown.
"Accidental honesty": The author describes the use of the phrase "people I've never heard of" as "accidental honesty" to highlight the fact that many similar instances of police brutality against African-Americans go unnoticed and unreported in the media, leading to a limited understanding of the larger issue. The phrase suggests that the speaker unintentionally acknowledges this larger problem while focusing on the specific case of Michael Brown.
The author likely emphasizes this "accidental honesty" to bring attention to the systemic nature of police brutality and to encourage a broader discussion about the disproportionate impact of police violence on marginalized communities.