Lindsay Clancy in May of 2021 that her middle child, Dawson, was the “most difficult human I have ever encountered.”

Dawson Clancy

Dawson Clancy, 3, celebrates after fully dressing himself for the first time on Jan. 24, 2023. His mother killed him and his two siblings, Cora and Callan, later that day.Plymouth Superior Court

Lindsay Clancy with her children Dawson, Callan and Cora

Lindsay Clancy with Dawson, top, baby Callan and Cora in late November 2022, just two months before she strangled them.

“I am truly finding my 19 in month old to be the most difficult human I have ever encountered. I mean that with all of the love in my heart but honestly cannot make it through a day without getting so frustrated with him.”

The message was shown to the jury as Det. Andrew Chiachio testified about evidence he gathered in the case, which included getting a search warrant from Facebook parent company, Meta.

Massachusetts State Police Sergeant Andrew Chiachio testifies

Massachusetts State Police Sergeant Andrew Chiachio testifies Thursday, during day 8 of the Lindsay Clancy trial.AP

Clancy’s defense attorney, Kevin Reddington, asked Chiachio if he ever found any evidence that she abused the children. The officer said he did not.