Christopher Zanski is believed to have fatally shot 17-year-old Braden and 15-year-old Hailey on the 1400 block of Triadelphia Road in Glenelg, and then himself Howard County police said.
Officers found their bodies while performing a welfare check around 11 p.m. Sunday, Jan. 14, authorities said.
There are no indications that anyone else was involved in the incident and a motive has not immediately been identified.
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