Police found the body of 32-year-old Kristin Elizabeth Johnston in a home in Purcells Cove on Saturday.
Officers responded to reports of shots being fired around Spring Avenue and Mount Edward Road in Dartmouth at 5:20 a.m. today.
Local police said they received a tip from another force about someone making threats on social media.
Kevin Mohamed, 23, of Ajax, Ont., appeared in court in Brampton, Ont., briefly today and was remanded until April 19 for a bail hearing.
Prime Minister Justin Trudeau is scheduled to visit Calgary today, where he will participate in a roundtable on employment insurance and visit the Southern Alberta Institute of Technology.
Florida police have charged Donald Trump's campaign manager Corey Lewandowski with simple battery in connection with an incident earlier this month involving a reporter.