Blood patterns in the room where 14-year-old Anastasia Kriegel's body was found indicate she was struck several times with a weapon while she lay on the floor, a blood spatter analyst has told the trial of the two boys accused of her murder.
Other blood stains indicated she was assaulted while upright and an area of blood staining on the carpet further suggests she lay bleeding on the ground for some time before being moved to the part of the room where she was found by gardai three days after she was reported missing.
The accused, who are both 14, cannot be named because they are minors. They have each pleaded not guilty to murdering the Kildare schoolgirl at Glenwood House, Laraghcon, Clonee Road, Lucan on May 14 last year and are on trial at the Central Criminal Court.
Boy A is further charged with the 14-year-old’s aggravated sexual assault in a manner that involved serious violence to her. He has pleaded not guilty to that count also.
Mr John Hoade of Forensic Science Ireland today, Tuesday May 14 told prosecuting counsel Brendan Grehan SC that he visited Glenwood House with members of the Garda Technical Bureau on May 18, 2018 and went to "Room 1" where Ana's body had been found the previous day.
Inside he identified seven areas of blood staining which included impact and cast-off staining on the walls and saturation blood staining on the carpet. He explained that impact staining occurs when an object strikes a source of liquid blood. Cast-off patterns occur when blood drops are released from an object such as when a weapon is swung through the air. Saturation staining, he said, is an accumulation of liquid blood and this could be seen on the carpet near the door as one entered the room.
Impact and cast-off staining near the skirting board indicated, the witness said, that Ana was struck several times on the head while on the floor. He noted a "large red area on the wall above the skirting board" and told Mr Grehan: "Ana's head was in contact with that area when she was struck with a weapon."
The heavy staining to the carpet close to the skirting board, Mr Hoade said, indicated she bled from the head in that area for some time but her body was not found in that location, suggesting she was moved. He could not say how long she lay before being moved.
Clothing was strewn about the room and the trial has previously heard that Ana was naked but for a pair of socks when found. There were further areas of staining closer to the level of the windows which, Mr Hoade said, "indicate she was assaulted while she was upright at the back of the room because they are higher than the ones at the skirting board."
A swipe pattern close to the skirting board suggested Ana touched this area while bleeding or an item wet with her blood was in contact with the area. DNA analysis showed that the blood on all but one of the areas identified belonged to Ana.
A swab taken on one of the areas did not yield blood for analysis. Mr Hoade said he also took items from the scene to the forensic laboratories for further examination including a white stick and a concrete block.
Earlier the trial head from Detective Garda Gabriel Newton who told Mr Grehan she took clothing that Boy A was wearing on the day Ana went missing. Boy A told gardai he was assaulted on that day in a park by two men and had suffered injuries. His mother told Det Gda Newton that she washed his top twice because there was blood staining in the collar area.
Det Gda Newton said she could make out a dark area on the white top which Boy A's mother indicated was blood staining. There was also blood staining on the bottoms. The clothing, including a pair of boots and a black hoodie were shown to the jury as was an i-Phone belonging to Boy A.
Det Gda Newton further identified clothing taken from Boy B which included Nike runners, a grey hoodie and black tracksuit bottoms.
Under cross-examination the witness told Patrick Gageby SC for Boy A that the parents of Boy A were "absolutely" cooperative.
The trial continues in front of Justice Paul McDermott and a jury of eight men and four women.