For every sparkling tree dotting the Mag Mile, there’s a dark block without a single holiday light on the South Side. Jahmal Cole is determined to change that. His organization — My Block, My Hood, My City — is putting up holiday decorations along Martin Luther King Drive between 55th and 87th streets. “I'm like, I want to see some blue holiday lights put up, some solar lights, instead of surveillance cameras around here for a change,” Cole said.