Forensic science 151119 PDF

Title Forensic science 151119
Author DeJun Soh
Course Introduction To Forensic Science
Institution Nanyang Technological University
Pages 5
File Size 99.1 KB
File Type PDF
Total Downloads 90
Total Views 128

Summary

notes...


Description

Eric Frein Blooming Grove, Pennsylvania on 12092014 -

overthrow the government starting a revolution shooting a police officer

Cpl Byron Dickson and trooper Alex Douglas shot; 308 cartridge cases found Evidence Found -

Found in Crime Scene

Vehicle registration and 308 cartridge cases match Waterbottle Sweatshirt Driver’s license,social security card, hunting license (Eric Frein) -

Found in House

308 cartridge cases Dental Pick Campsite Checkbook Handphone Waterbottle Food Garbage Diary – document his motive and actus rea 308 ammunition Arrested at Birchwood Pocono Airpark ( found guilty, death sentence )

Isdal woman November 1970: body found by hiker burned (front not back (Fire started after lying on ground) watch and jewellery beside her

bottles smelling of petrol (douse in petrol) clothing labels removed (avoid identification) Autopsy: 50-70 sleeping pills in the stomach carbon monoxide in the blood smoke particles in the lungs ( alive when set on fire, must be breathing to inhale carbon monoxide) suitcases at Bergen railway station coded message: O22 O28 P (Oct 22 and oct 28 in Paris) travelling under 7 different names Verdict: Suicide Jaw preserved. DNA extracted. Trace elements analysed: Southern Germany? ( Possible early childhood location ) The Wynarka case Wynarka, S. Australia, 2015 Suitcase by the highway found to contain skeleton (possible murder case), child’s clothes, quilt (individualized evidence) Mother’s remains: Belanglo State Forest 2010 (related to wynarka skeleton) 2008 last seen 2009 reported missing (report withdrawn) 2011 hand phone still used identity theft 2015 suspect arrested Daniel James Holdom: guilty plea two life sentences Annie Le, Yale, 2009 Last known movement:, September 8th , about 10 am - last known movement, 10 Amistad St 10.40 pm, reported missing (runaway bride) September 13th: body found in wall space September 17th: animal lab tech Raymond Clark arrested March 17th, 2011: plea bargain - guilty of murder and sexual assault (plead guilty to sexual assault but there was no mention of the crime) June 3rd sentencing: 44 years in prison How did they find her?

CCTV and door lock records: entered but did not exit Records everyone who enters locked rooms: last room is G13 September 13th: body found in wall space strangled, jaw and collar bone broken, bruise to back of head, signs of sexual assault Medium velocity blood spatter in room G13 What made Raymond Clark as suspect? Evidence: CCTV- shows frantic moments and locks - Excessive use and change of clothes Suspicious activity (attempt to hide stuff) while police are searching September 17th: Raymond Clark arrested How was Raymond Clark convicted? Sock, glove and other clothes found above ceiling tile: Sock has blood from both Ray Clark and Annie Le In wall space with the body: second sock, green pen - green pen has Clark’s DNA DNA from sexual assault is his March 17th, 2011: plea bargain: guilty of murder and sexual assault 44 years in prison Peter Griffiths, Blackburn, 1948 June Delvaney (3 years) in hospital with pneumonia Nurses notice her cot is empty very early (1.15am) on the morning of May 15th Empty sterile water bottle found under the cot Prints from adult feet (in socks) from the cot to the door Body found in the hospital grounds (3.15 am) Evidence - footprints: pattern of the weave plus fibres - fingerprints on the bottle First eliminate the obvious: doctors, nurses, staff, patients, visitors, ambulance drivers; 642 sets in three days Second: anyone familiar with the hospital – 200 sets of prints Every male in Blackburn over the age of 14: 50,000 prints How do you know who lives in a town? Visit every house Tax records

Electoral register 1948: rationing! (documentation) Jon Benet Ramsey Found dead: December 26th, 1996 Boulder, Colorado, USA aged 6 December 26th 5.45 am Patsy calls police; arrive 5.52 friends of the Ramseys also come Ransom note: Jon Benet kidnapped Crime scene = bed room, entrances? Body found by John Ramsey about 1 pm Fractured skull (impact of blunt object) Ligature strangulation - with Pat’s painting equipment Sexual assault? Hands loosely tied Mouth covered by duct tape (already dead?) Ligature strangulation – garotting Ransom note - written on Ramsey’s paper with their pen first draft discarded Longest ever ransom note? 3 pages Handwriting - John: no; Pat: low probability "Mr. Ramsey, "Listen Carefully! We are a group of individuals that represent a small foreign faction. We do respect your bussiness but not the country that it serves. At this time we have your daughter in our posession. She is safe and unharmed and if you want her to see 1997, you must follow our instructions to the letter -wanted to write as foreign persona "You will withdraw $118,000.00 from your account. $100,000 will be in $100 bills and the remaining $18,000 in $20 bills. Make sure that you bring an adequate size attache to the bank. When you get home you will put the money in a brown paper bag. I will call you between 8 and 10 am tomorrow to instruct you on delivery. The delivery will be exhausting so I advise you to be rested. If we monitor you getting the money early, we might call you early to arrange an earlier delivery of the money and hence a earlier delivery pick-up of your daughter. "Any deviation of my instructions will result in the immediate execution of your daughter. You will also be denied her remains for proper burial. The two gentlemen watching over your daughter do not particularly like you so I advise you not to provoke them. Speaking to anyone about your situation, such as police, F.B.I., etc., will result in your daughter being beheaded. If we catch you talking to a stray dog, she dies. If you alert bank authorities, she dies. If the money is in any way marked or tampered with, she dies. You will be scanned for electronic devices and if any are found, she dies. You can try to deceive us but be warned that we are familiar with law enforcement countermeasures and tactics. You stand a 99%

chance of killing your daughter if you try to outsmart us. Follow our instructions and you stand a 100% chance of getting her back. You and your family are under constant scrutiny as well as the authorities. Don’t try to grow a brain John. You are not the only fat cat around so don’t think that killing will be difficult. Don’t underestimate us John. Use that good southern common sense of yours. It is up to you now John! Victory!" "S.B.T.C" An intruder? No footprints in the snow - not enough snow? Traces left in other rooms and hallways? Only broken window was broken by John Ramsey Were the doors locked? The tape on her mouth (after she was unconscious) DNA from her underwear Mark Karr E-mails to Michael Tracey (U. Colorado) “I was with JonBenet when she died” Deported to Colorado Charges dropped after DNA test Boulder police mistakes Failure to recognise the whole crime scene Failure to secure the crime scene Failure to search the crime scene Failure to ask for help!...


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