In the 1890s, William Murdoch uses radical forensic techniques for the time, including fingerprinting and trace evidence, to solve some of the city's most gruesome murders.In the 1890s, William Murdoch uses radical forensic techniques for the time, including fingerprinting and trace evidence, to solve some of the city's most gruesome murders.In the 1890s, William Murdoch uses radical forensic techniques for the time, including fingerprinting and trace evidence, to solve some of the city's most gruesome murders.