Not a transcript. Day accounts are summaries of news
reporting, not a record of what anyone said. Trial in progress, no verdict.
Commonwealth v. Clancy, August 5, 2026
WednesdayreportedcommonwealthDay 7 of 17
Toxicology, DNA and the family's former nanny.
Key points
- Nanny: aware of postpartum struggles, never concerned for the children.
- Four psychiatric medications present the night of the killings.
- Quetiapine slightly elevated; levels overall described as low.
- Relates to Exhibit 183 (MSP Crime Lab toxicology) and the NMS quantification.
- Wrist wounds: right 3cm/3 sutures plus others; left 2cm/1 suture.
- Exercise bands colour-coded per child: Dawson yellow, Cora black, Callan blue.
- Callan the major DNA contributor at the centre of the blue band.
- Quetiapine roughly double expected, not toxic or lethal; benzodiazepines LOWER than expected.
- Brower: the quantities found were not consistent with an overdose attempt.
- On August 4, 2026 Clancy addressed the court for the first time and stipulated to parts of the Commonwealth case.
Witnesses (5)
Eitan NegriCommonwealth
Physician assistant, Brigham and Women's
Cross: Reddington
- Treated the defendant on January 25, 2023.
- Right wrist: multiple lacerations, one 3cm deep closed with three sutures; the rest cleaned and dressed.
- Left wrist: a single 2cm linear cut closed with one suture.
Nicholas RobertsCommonwealth
Forensic scientist, MSP Crime Lab
- In-house toxicology screen (Exhibit 183).
- Nordiazepam, oxazepam and temazepam are diazepam metabolites, five benzodiazepine detections do not mean five medications.
Justin BrowerCommonwealth
Forensic toxicologist, NMS Laboratories
- Quetiapine slightly elevated, roughly double what might be expected, but neither toxic nor lethal.
- Lamotrigine, mirtazapine and trazodone all at therapeutic levels.
- Diazepam and lorazepam LOWER than expected.
- Alcohol negative in blood and urine.
- Observed that people attempting suicide by overdose usually take far more than was found here.
Katarina StashynCommonwealth
DNA analyst, MSP Crime Lab
- A red-brown stain in the basement matched Cora (stipulated).
- A blue exercise band carried DNA from every family member, with Callan the major contributor at its centre.
- Bands were colour-coded by child: yellow Dawson, black Cora, blue Callan.
- Blood on the house shingles and below the bedroom window matched the defendant.
Elaine RossiCommonwealth
Former part-time nanny, Sept–Thanksgiving 2022
Cross: Reddington
- The defendant was open about postpartum struggles and insomnia in autumn 2022.
- Never had concerns about the children's welfare or her interactions with them.
- Received detailed care notebooks for Callan; did not regard the food preparation as controlling.
- Employment ended when Patrick reported she would not be returning to work.
- Stayed in contact afterwards and was sent videos of the children.
Exhibits and evidence
- Exhibit 183, MSP Crime Lab toxicology report
- Exercise bands, colour-coded per child
- Cell phone video of Rossi feeding Callan, dated September 9, 2022
Procedural
- -Day began after a sidebar.
- 12:04Lunch recess.
- -Court rose early; the judge had further matters to take up.
- prior dayOn August 4 the defendant addressed the court for the first time and stipulated to parts of the Commonwealth case.