Elizabeth and Frank Lackey

Black and white photo of Frank and Elizabeth Lackey. They have fair skin. She has dark hair and is wearing a sweater; he has light hair and is wearing a suit and glasses.Name: Elizabeth “Esu” Lackey.
Age at death: 85.

Name: Frank Danby “Dan” Lackey III.
Age at death: 89.

Died: September 8, 2017.
Cause of death: Multiple murder.
Location: Groton, Massachusetts, USA.
Disability: Unspecified; required caregiver.

Details:
Esu and Dan were both beaten to death by their grandson, along with their home-health worker Bertha Mae Parker, and their daughter, Elizabeth “Buffy” Krause.

The Lackeys were active in the Chewonki Foundation, a charitable organization that holds summer camps to teach kids about the environment and sustainability.

Perpetrator: Orion Krause (Grandson), charged with four counts of murder.

Source:
Orion Krause beat four people to death in Groton home
‘I murdered four people.’ A stranger at the door, a terrible crime
Mom slain in Groton described as ‘goodhearted person, always’
FRANK DANBY LACKEY III’s Obituary on Boston Globe
ELIZABETH CLEVELAND LACKEY’s Obituary on Boston Globe