Lecture Notes

Juror Instructions

• Jurors were reminded to refrain from discussing the case or conducting independent research.
• Clarification provided on what constitutes evidence:
  • Only witness answers under oath are considered evidence, not the questions asked.

Witness Testimony: Lieutenant Kevin O'Hara

• Background:

  • Lieutenant in Massachusetts State Police for over 22 years.
  • Currently Team Commander for the State Police Special Emergency Response Team (C Team).
  • Responsibilities include search and rescue, security at large-scale events, evidence searches.

• Incident Details:

  • On January 29, 2012, involved in a case concerning a death investigation in Canton.
  • Contacted by Lieutenant Brian Tully for assistance with an evidence search.
  • Described activation process for the C Team.
  • Weather conditions included a blizzard with 18-20 inches of snow.

• Search Process:

  • Seven team members conducted a line search along a road in Canton.
  • Aim was to find tail light pieces and a missing sneaker.
  • Search challenged by snow drifts; items found at ground level near the curb.
  • Evidence included multiple pieces of tail light and a sneaker.

• Follow-up and Analysis:

  • Offered to return for further search if needed.
  • GPS used to map evidence locations with a noted range of error.
  • Team's experience and instincts were crucial for search efficacy.

Witness Testimony: Maren Hartnett

• Background:

  • Forensic Scientist at Massachusetts State Police crime laboratory.
  • Experienced in biological fluid identification and crime scene response.

• Evidence Examination:

  • Examined black Lexus SUV in Canton PD garage.
  • Noted damage and collected samples including a tail light housing and apparent hair from the vehicle.
  • Conducted blood tests on vehicle components; results negative.

• Additional Evidence Handling:

  • Collected a drinking glass and Solo cups with red-brown stains for further analysis.
  • Analyzed clothing for damage patterns and biological stains.
  • Conducted confirmatory tests on red-brown stains from clothing.
  • Coordinated with external labs for testing beyond in-house capabilities.

Witness Testimony: Ashley Vallier

• Background:

  • Forensic Scientist in Trace Unit at Massachusetts State Police crime laboratory.
  • Specializes in gunshot residue analysis and physical match analysis.

• Trace Analysis:

  • Examined debris and trace materials from clothing and crime scene.
  • Conducted physical match analysis to determine connections between evidence pieces.
  • Utilized a stereo Zoom microscope for detailed examination.

• Evidence Handling:

  • Thorough documentation through notes and photographs.
  • Ensured accurate labeling and repackaged evidence appropriately post-analysis.

Conclusion

• Detailed forensic processes and evidence handling were crucial in supporting the investigation.
• The testimonies underscored the importance of methodical searches and rigorous documentation to maintain the integrity of evidence.