Vice President Kamala Harris expresses her shock over the Colorado shooting, and praises the police officer killed in the mass shooting for his 'great courage and heroism.' #KamalaHarris #Colorado #News #Reuters #AhmadAlAliwiAlissa #BoulderShooting #KingSoopers #Coloradoshooting #Boulder #ColoradoGroceryStore #Boulderpolice Subscribe: http://smarturl.it/reuterssubscribe Reuters brings you the latest business, finance and breaking news video from around the globe. Our reputation for accuracy and impartiality is unparalleled. Get the latest news on: http://reuters.com/ Follow Reuters on Facebook: https://www.facebook.com/Reuters Follow Reuters on Twitter: https://twitter.com/Reuters Follow Reuters on Instagram: https://www.instagram.com/reuters/?hl=en