Library of Congress Chronicling America guide
The LOC guide is the cleanest starting point for the public timeline and the Chronicling America newspaper path.
Can prove
Murders on August 4, 1892, arrest on August 11, trial beginning June 5, 1893, and acquittal on June 20, 1893.
Be careful
It is a newspaper research guide. It is not the full trial record, and it does not solve the murders.