Chicago Police Department interim superintendent John Escalante and Cook County state's attorney Anita Alvarez arrive to announce charges in the murder of nine-year-old Tyshawn Lee. Credit: Brian Jackson/Sun-Times

Welcome to the Reader‘s morning briefing for Wednesday, March 9, 2016.

  • Weather: Another day with highs in the 60s, rain

It will be a relatively nice day, with a high of 61 and a low of 49. There will be a couple of showers, but the rain shouldn’t last. [AccuWeather]

  • Officials charge Dwright Boone-Doty for murder of nine-year-old Tyshawn Lee

Interim police superintendent John Escalante and Cook County state’s attorney Anita Alvarez announced charges against Dwright Boone-Doty, 22, for the tragic murder of Tyshawn Lee. They released disturbing details about Boone-Doty, including his original plan to kidnap and torture Lee and his allegedly professed desire to kill more kids. [DNAinfo Chicago]

  • Poll: Collar-county suburbs are Trump’s strongest area of support in Illinois

Will Donald Trump win Illinois’s primary? We won’t know until March 15, but the most recent poll of likely Republican voters in the state shows him ahead of Senators Ted Cruz and Marco Rubio and Governor John Kasich by ten points. His biggest lead is with collar-county suburban voters, according to the Tribune poll of 600 registered voters. The gap between Trump and Cruz is narrow among Cook County and downstate voters. [Tribune]

  • A bartender’s incredible photos of 1970s Chicago

Photographer John Banasiak is sharing the incredible photos he took of bar patrons while working at George Brown’s (now closed) in the 70s. Brown’s was popular with the Polish and Ukrainian communities on the south side, and the black-and-white photos beautifully capture a bygone era. [Slate]

  • Loop retail vacancy rate falls to 14-year low

The retail juggernaut power of the Magnificent Mile is expanding south of the Chicago River. The retail vacancy rate in the Loop is at its lowest level since 2002. [Curbed Chicago]

  • Salad chain Sweetgreen opening in River North 

Chicago is full of fast-casual restaurants, but the options offered aren’t always nutritious. Health-food enthusiasts may be excited that Sweetgreen, a popular salad chain based in Washington, D.C., is set to open its first Chicago location in River North sometime in 2016. Recognizing an opportunity in the Chicago market, Sweetgreen is also scouting additional locations in the city. [Chicago Tonight]