Justthefacts on the blood evidence





on the Jeffrey MacDonald case and more ...

Topic: Blood evidence

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In the early stages of the CID investigation, the most important forensic finding had to do with blood analysis. A unique aspect of this analysis was the fact that each MacDonald family member had a different blood type. This provided CID investigators with a virtual map of a family member's location and movements within the crime scene.

The following is not a complete list of all the blood evidence, but these are the most significant blood traces for each family member:

Jeffrey MacDonald (Type B blood):

Front and right side of the sink in the hallway bathroom

Stepladder in the hallway bathroom

Wicker material moved from the stool in the hallway bathroom

Five drops of blood, each the size of a dime, found on the kitchen floor in the front of the sink

Blood stain near the left elbow on Jeffrey MacDonald's pajama top

Blood found on the hallway closet door

Colette MacDonald (Type A blood):

Massive blood stains on the master bedroom carpet

Blood spatter on the top sheet of the master bed

Massive blood stains on the blue bedsheet and multi-colored bedspread found rumpled together in the master bedroom

Blood spatter found inside the closet in the master bedroom

Bloody streaks found on the master bedroom ceiling

Two direct bleeding stains found on top of Kristen's bed

Blood spatter found on Kristen's wall next to her bed

Formation of the word "PIG" on the headboard in the master bedroom

Formation of Jeffrey MacDonald's left footprint found exiting Kristen's room

Bloody streaks found on the Hilton Hotel bathmat

Massive blood stains on Jeffrey MacDonald's pajama top

Bloody smudges found on the dining room floor

Blood stain found on the bathroom wall to the left of the sink

Cast-off blood spatter found on the north wall in Kimberley's room

Kimberley MacDonald (Type AB blood):

Six-inch circle of blood found just inside the entrance to the master bedroom

Trail of blood beginning at the entrance to the master bedroom and ending near the entrance to Kimberley's room

Blood spatter found on the ceiling in Kimberley's room

Blood spatter found on the wall in Kimberley's room

Transfer stain found on a bedspread in Kristen's room

Direct bleeding stains found on the blue bedsheet

Blood stain found on the lower left panel of Jeffrey MacDonald's pajama top

Bloody streaks found on the Hilton Hotel bathmat

Bloody smudges found on the dining room floor

Kristen MacDonald (Type O blood):

Direct bleeding stains on Kristen's pillow and bed

Blood on the side of Kristen's mattress and boxspring

Pool of blood on the floor next to Kristen's bed

Blood spot on the outer lens of Jeffrey MacDonald's glasses

There were several significant "or" results within the Fort Gordon blood report:

Blood spot near the top step of the stairs leading to the living room was Type B or Type O

Blood on a pink tissue found at the entrance to the hallway bathroom was Type A or Type AB

Blood on a pink tissue found in the hallway bathroom sink was Type A or Type AB

Right footprint found on the floor in Kristen's room was Type A or Type AB

Bloody smudge in the configuration of a finger found on the leading edge of an Esquire magazine was Type A or Type AB

The crime scene also contained a number of blood stains that could not be typed due to stain paucity:

Left footprint found in the middle of the hallway floor near the entrance to Kristen's room

Blood on the living room floor near the glasses of Jeffrey MacDonald

Top of the kitchen stove

Refrigerator door handle

Under the left kitchen sink

Side of the washing machine

Sink faucets in the hallway bathroom

Top of the bathtub

Left side of the hallway bathroom sink

Midnight Sun shampoo box located in a waste basket by the north door

Cloth toilet seat cover

Top of the toilet tank

Two bottles containing unknown liquid from the hallway bathroom sink trap

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