A University of Pennsylvania professor drew ridicule online for suggesting that first responders waited too long to engage the shooter in Uvalde, Texas last week because “police didn’t give a damn” about “brown kids.” In a since-deleted tweet from Friday, UPenn Religious Studies and Africana Studies Professor Anthea Butler — who is also an MSNBC contributor — suggested that racism was responsible for the police failure to stop a gunman at a Texas elementary school in an attack that left 19 children and two adults dead.