harrythawloc

en.wikipedia.org/wiki/Harry_Kendall_Thaw

Actually, not the courthouse, but instead the photo was taken in front of the Ludlow Street Jail, no longer standing. The sign by the front door reads "New York County Jail" (New York County is essentially Manhattan), and that is what the Ludlow Street Jail was.
Thaw, in 1915, was returned to New York City after escaping confinement at Matteawan State Hospital (He had been acquitted of the 1906 murder of architect Stanford White by reason of insanity). His lawyers successfully asked the court to move him from The Tombs to the Ludlow Street Jail, on the basis that he was not charged in a criminal matter, but that he was to have a jury trial only as to his present sanity.
query.nytimes.com/gst/abstract.html?res=F10916F93E5D16738...
In this old print, you can see that the door was near the corner of Ludlow and Essex Market Place. [Essex Market Place ran from Essex to Ludlow Streets between Broome and Grand Streets and was closed in 1926, around the time the jail was demolished.] You can see that there was a giant gas lamp over the door, whereas in Bain's 1915 picture just the bracket remained.
digitalgallery.nypl.org/nypldigital/dgkeysearchdetail.cfm...

knickerbockervillage.blogspot.com/2009/10/seward-park-aer...

This was probably taken when Thaw was due to be taken from the jail to court.
He and 5 others who helped him escape the state hospital were tried in March, 1915 and acquitted. He then had a second trial in 1915 to determine if he was presently sane. He was determined sane in this trial on July 14, 1915, which is presumably about when this shot was taken.
The New York Times account describes 2,000 people gathered at the courthouse, cheering thaw after the trial:
query.nytimes.com/gst/abstract.html?res=FA0E10FC3E5A15738...

See also:

And not to forget, the Thaw trials were about Evelyn Nesbit Thaw, or more exactly Thaw's shooting of her presumed lover, Stanford White.

Wow, this house has an amazing story. Love to hear more about the ghosts. Summer residence of Harry and Evelyn Thaw (below). I missed their stories in the previous LoC photos, click through or search for "Thaw" in the LoC photostream.

I think the "haunted house" was a 20-room country home named Elmhurst Grange, located in Munster Township, PA [1] and also referred to as located in Loretto, PA [2] – both of which are next-door to the mis-captioned Cresson, PA.  Elmhurst was built by William and Mary Thaw, parents of Harry Thaw. Evelyn Nesbit Thaw reportedly stayed there a few times. The castle home in the above photograph was named Lyndhurst – the Gothic Revival home of William and Mary C. Thaw – and wasn't near Cresson, but was located at 1165 Beechwood Boulevard, in the Squirrel Hill section of Pittsburgh, PA.[3] [4]   William Thaw (1818-1889) was a founder of the Pennsylvania railroad. It was named "Lyndhurst" for a Tarrytown, N.Y., home owned by fellow railroad magnate Jay Gould.[5]  [See: "Gould's home, Tarrytown" /LOC]

"It was designed by architect Theophilus Parsons Chandler, and construction began in 1887. William Thaw's widow, Mary Thaw, later sold part of the property to raise funds for her son Harry's legal defense. Harry K. Thaw was arrested for murdering prominent architect Stanford White in 1906." – Squirrel Hill - Images of America, The Squirrel Hill Historical Society, Arcadia Publishing, 2005.

Lyndhurst was then bought by industrialist Emil Winter (1857-1941), a prominent banker and a founder of the Pittsburgh Steel Co., who extensively remodeled the home. Lyndhurst was demolished c.1942. [6]

Thanks for the correction, @Pixel Wrangler. So the title of the photo is incorrect!

Attorney for Harry Thaw during his extradition trial. See: en.wikipedia.org/wiki/Harry_Kendall_Thaw

I added him to Wikipedia, not much on him: en.wikipedia.org/wiki/W._L._Shurtleff