MINNEAPOLIS (WCCO) — From a massive Detroit teacher strike  to the booming Twin Cities housing market, here are the four stories to know for Thursday, Jan. 21.

Putin Allegations

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A British judge says President Vladimir Putin most likely approved a plan to kill a former Russian security service agent.

In a lengthy report, the judge said he’s certain Alexander Litvinenko died three weeks after drinking tea laced with poison at a London hotel in 2006.

Russia’s foreign ministry responded to the allegations calling them “politically motivated” and unobjective.

Detroit Teacher Strike

Teachers in Detroit are vowing to continue protests today over recent pay cuts — and what they call deplorable conditions — at their schools.

Nearly all the city’s public schools were closed Wednesday when educators staged a massive sick-out.

The Detroit school district had sought a temporary injunction to prevent another strike.

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Buffalo Bills Make Historic Hire

The Buffalo Bills are making history.

The team hired Kathryn Smith as a full-time quality control-special teams coach — that’s a first for the NFL.

In an announcement posted on the team’s website, head coach Rex Ryan said Smith has worked with the team on a part-time basis for seven years.

Ryan said Smith’s knowledge and commitment got her the promotion.

Twin Cities’ Booming Housing Market

The Twin Cities housing market has seen the highest number of sales in a decade.

Real estate experts said in 2015 the Twin Cities experienced the best year in home sales since the Great Recession. Agents reported more than 56,000 sales in 2015, that’s up more than 6,000 from the previous year.

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Two of the biggest driving factors were attractive interest rates and affordable prices.