Suspect Released

This article mentions that a tall man with a dark beard who also wore an American slouch hat, who was arrested on suspicion of being the Whitechapel murderer was released due to lack of evidence on which to hold him. This suspect sounds like Tumblety to me.

THE WHITECHAPEL MURDERS.

Not Even a Suspect Now in the Hands of the London Police.

LONDON, Oct. 3. - The last arrest in the Whitechapel section was of a crazy man, on whose coat were a number of blood stains. His innocence of the murders was soon established. Not a person is in custody, all who have been arrested having proved their good character. There was nothing even on which to hold the tall man with a dark beard, who wore an American slouch hat, who, it will be recalled, was regarded with so much suspicion by the able coroner.
At the inquest on the body of the woman found off Berner street Sunday morning a sister stated that at 1:20 Sunday morning she heard kisses and a sound which she thought was made by a person falling to the ground. She was convinced that her sister was dead, and upon visiting the morgue positively identified the body. She lives in a house several miles from Berner street. The murder must have been committed before 1 o'clock Sunday morning.
The locality in which the decomposed body of a woman was found yesterday is one of the most populous and respectable parts of London. Thousands of people pass through the various thoroughfares daily, but at night the streets are comparatively deserted, and there is much danger along the Thames embankment after 10 o'clock.

Source: The Ogdensburg Journal, Thursday, October 4, 1888