In March and April, MSNBC’s primetime hosts ran with nearly wall-to-wall coverage of the killing of Florida teen Trayvon Martin. They regularly suggested that the lack of national interest in the case was worthy of outrage. Last week, when an avalanche of new evidence favorable to George Zimmerman came to light, MSNBC’s primetime lineup didn’t just bury the story, they didn’t mention Martin or Zimmerman once the week that news broke according to media monitoring service TV Eyes.