(Mark Busch)Two people were found dead inside a home in unincorporated Sycamore on Tuesday morning, prompting school lockdowns and a multi-county search for the person responsible, according to the DeKalb County Sheriff’s Office. When deputies arrived, they found the two dead inside their home in the 1300 block of Oakland Drive in Sycamore, according to a news release from the sheriff’s office. DeKalb County Sheriff Andy Sullivan said his office is still investigating the matter and asked the public for help. The suspect was detained by the Winnebago County Sheriff’s Office. Dozens of police, including sheriff’s deputies and officers from DeKalb and Sycamore, congregated around the home for most of the day Tuesday.