The crime was promptly traced home to the conspirators; and on the second day of July, the day after Captain Codman's death, a coroner's jury found that he died from poison feloniously procured and administered by Mark. Ten days later, Quaco,—the nominal husband of Phebe, and one of the negroes implicated,—who was the servant of Mr. James Dalton, of Boston, was examined before William Stoddard, a justice of the peace, and on the same day Robin was arrested and committed to jail. The examination of Quaco was followed by the examination of Mark, and of Phillis, later in the month. These last were taken before the Attorney-General and Mr. Thaddeus Mason.

At the term of the "Superiour Court of Judicature, Court of Assize, and General Goal Delivery," held at Cambridge on the second Tuesday of August following, the grand jury found a true bill for petit treason against Phillis, and against Mark and Robin as accessories before the fact. As this is the only indictment for this offence known to have been found in Massachusetts, and was drawn by that eminent lawyer, Edmund Trowbridge, then Attorney-General, it is worthy of being preserved in print, in connection with the coroner's verdict and the examinations of the suspected parties, which are as follows:—

[Coroner’s Inquest.]

[Two-penny
stamp.]Middlesex ss.

An Inquisition Indented, Taken at Charlestown Within the County of Middlesex Aforesaid the Second day of July in the Twenty ninth year of the Reign of our Lord George the Second by the Grace of God, of Great Britain France and Ireland, King Defender of the Faith &c., before John Remington Gentleman one of the Coroners of our said Lord the King, Within the County of Middlesex Aforesaid; upon view of the Body of John Codman of Charlestown Aforesaid Gentleman then and there Being dead by the oaths of Josiah Whitemore, Samuel Larkin, Samuel Larkin Junr. Richard Deavens, William Thompson, Nathaniel Brown, Samuel Kettle, John Larkin, Thomas Larkin, David Cheever, Barnabas Davis, Edward Goodwin, Benjamin Brazier, Samuel Sprague, Richard Phillips, Samuel Hendley and Michael Brigden Good and Lawfull men of Charlestown Aforesaid Within the County Aforesaid; Who being Charg'd and Sworn to Inquire for our said Lord the King, When, and by What means, and how the Said John Codman Came to his Death—upon their Oaths do Say that the said John Codman Came to his death By Poison Procured by his negro man servant Mark Which he took and Languishd untill the first of July Current and then died and so the Jurors Aforesaid upon their oaths do Say, that Aforesaid Mark in manner and Form Aforesaid, the Aforesaid John Codman then and there feloniously did Poison against the peace of our Soverign Lord the King his Crown and Dignity—

In Witness, Whereof, as Well I the Coroner Aforesaid, as the Jurors Aforesaid, to this Inquisition have Interchangeably put our hands and Seals, the day And year Abovesaid.

John Remington Coroner[Seal.]
Richd Phillips[Seal.]Josiah Whittemore[Seal.]
Samll Kettell[Seal.]Saml Hendly[Seal.]
John Larkin[Seal.]Michll Brigden[Seal.]
Samuel Larkin Jnr.[Seal.]Nathll Brown[Seal.]
William Thompson[Seal.]David Cheever[Seal.]
Thomas Larkin[Seal.]Samll Larkin[Seal.]
Richard Devens[Seal.]Benjamin Brazier[Seal.]
Barnabas Davis[Seal.]
Samuell Sprague[Seal.]
Edwd. Goodwin[Seal.]

[Examination of Quaco.]

On the 12th July 1755, was Examined Quacoe a Negro man belonging to Mr James Dalton of Boston Victualler He sd Quacoe says that some time the last winter one Kerr a Negro man belonging to Doctr. Jno Gibbons came to the sd Quacoe & told him that Mark belongg. to Mr Codman had Been wth. him to get some Poyson and the sd. Quaco says that Ker told him that Mark asked the sd. Kerr whither Phœbe had been wth. him for said Poyson. The said Quacoe also says that he Spoke to Phœbe Mr Codman's negro woman whom he called his Wife & told her not to be Concerned with Mark for that she would be Brought into Trouble by him, for that Mark had been wth. Kerr Gibbons to get Poyson, & had askt sd Kerr whither Phœbe had not been wth him for sd Poyson. The sd Quacoe also says that the above discourse wth Phœbe was when they were going to Bed the Saturday night after the discourse had wth. Kerr Gibbons. He also says that he charged her not to be concerned wth. Mark about Poyson on any accot. whatever.