Police in Philadelphia arrested at least 91 people during unrest Monday night and Tuesday morning, with three people being cited for failing to disperse and about a dozen being charged with assault of an officer. The unrest came after Walter Wallace was killed when more than a dozen rounds were fired by two Philadelphia officers who say he refused calls to put down a knife in a confrontation that led to unrest in the predominantly Black neighborhood. Wallace, 27, was shot in an episode filmed by a bystander and posted on social media. Bystanders and neighbors complained that police fired excessive shots. Police had previously said 30 officers were injured in the unrest. Subscribe to our YouTube channel: https://bit.ly/2TwO8Gm QUICKTAKE ON SOCIAL: Follow QuickTake on Twitter: twitter.com/quicktake Like QuickTake on Facebook: facebook.com/quicktake Follow QuickTake on Instagram: instagram.com/quicktake Subscribe to our newsletter: https://bit.ly/2FJ0oQZ Email us at [email protected] QuickTake by Bloomberg is a global news network delivering up-to-the-minute analysis on the biggest news, trends and ideas for a new generation of leaders.