{
  "case_id": "B12",
  "title": "The Coffee Shop Murder",
  "difficulty": "Medium",
  "victim": {
    "name": "Emma Rodriguez",
    "age": 24,
    "occupation": "Barista",
    "time_of_death": "11:15 PM"
  },
  "suspects": [
    {
      "id": "suspect_1",
      "name": "Liam O'Connor",
      "role": "Ex-Boyfriend",
      "gender": "male",
      "is_murderer": true,
      "motive": "Jealousy",
      "true_location": "Coffee Shop Back Door",
      "alibi_story": "Gaming at home",
      "alibi_id": "ALIBI-201",
      "phone_number": "+1-555-1101",
      "bio": "Possessive and recently dumped. Has been sending angry texts."
    },
    {
      "id": "suspect_2",
      "name": "Mark Stevens",
      "role": "Manager",
      "gender": "male",
      "is_murderer": false,
      "motive": "Financial dispute",
      "true_location": "Bank deposit drop",
      "alibi_story": "Depositing cash",
      "alibi_id": "ALIBI-202",
      "phone_number": "+1-555-1102",
      "bio": "Stressed about money. Owed Emma back pay."
    },
    {
      "id": "suspect_3",
      "name": "Chloe Kim",
      "role": "Coworker",
      "gender": "female",
      "is_murderer": false,
      "motive": "Promotion rivalry",
      "true_location": "Gym",
      "alibi_story": "Late night workout",
      "alibi_id": "ALIBI-203",
      "phone_number": "+1-555-1103",
      "bio": "Competitive and ambitious. Wanted the shift lead position."
    },
    {
      "id": "suspect_4",
      "name": "Regular Joe",
      "role": "Customer",
      "gender": "male",
      "is_murderer": false,
      "motive": "Obsession",
      "true_location": "Bus stop across street",
      "alibi_story": "Waiting for bus",
      "alibi_id": "ALIBI-204",
      "phone_number": "+1-555-1104",
      "bio": "Always there. Kind of creepy but harmless."
    }
  ],
  "evidence": {
    "location_data": {
      "suspect_1_phone": {
        "11:15 PM": {"lat": 40.7128, "lng": -74.0060, "location": "Coffee Shop Alley"}
      },
      "suspect_2_phone": {
        "11:15 PM": {"lat": 40.7150, "lng": -74.0080, "location": "Night Deposit Box"}
      },
       "suspect_3_phone": {
        "11:15 PM": {"lat": 40.7200, "lng": -74.0100, "location": "24h Gym"}
      },
       "suspect_4_phone": {
        "11:15 PM": {"lat": 40.7129, "lng": -74.0059, "location": "Bus Stop"}
      }
    },
    "footage_data": {
      "kitchen_cam": {
        "11:10-11:20 PM": {
          "visible_people": ["Emma arguing with man in blue cap", "Second figure in shadows"],
          "quality": "Good",
          "key_frame": "11:15 PM - Man stabs Emma"
        },
        "unlocks": ["knife_handle", "tip_jar", "napkin"]
      },
      "alley_cam": {
        "11:00-11:30 PM": {
          "visible_people": ["Liam entering 11:05", "Mark leaving 11:00", "Joe lurking near dumpster"],
          "quality": "Grainy (Night Mode)",
          "notes": "Two people wearing blue caps seen (Liam and Joe)."
        },
        "unlocks": []
      }
    },
    "dna_evidence": {
      "knife_handle": {
        "label": "Bloody Knife (Kitchen)",
        "matches": ["suspect_1", "suspect_2"],
        "confidence": "Inconclusive",
        "notes": "Smudged prints. Could be Liam or Mark (who owns the knife)."
      },
      "tip_jar": {
        "label": "Tip Jar (Counter)",
        "primary_match": "suspect_2",
        "confidence": "99%",
        "notes": "Mark cleared the tips earlier."
      },
      "napkin": {
        "label": "Crumpled Napkin",
        "primary_match": "suspect_4",
        "confidence": "95%",
        "notes": "Joe's DNA. He was here earlier."
      }
    },
    "alibis": {
      "suspect_1_alibi": {
        "contact": "None",
        "contact_name": "Mom",
        "verifiable": false,
        "truth": "Lying - claims she heard him gaming, but door was closed"
      },
      "suspect_2_alibi": {
        "contact": "+1-555-1200",
        "contact_name": "Bank CCTV",
        "verifiable": true,
        "truth": "Telling truth - footage confirms he was at bank at 11:15"
      },
      "suspect_3_alibi": {
        "contact": "+1-555-1203",
        "contact_name": "Gym Front Desk",
        "verifiable": true,
        "truth": "Telling truth - scanned badge at 11:00 PM"
      },
      "suspect_4_alibi": {
        "contact": "None",
        "contact_name": "Bus Driver",
        "verifiable": false,
        "truth": "Uncertain - bus was late, nobody remembers seeing him"
      }
    }
  },
  "timeline": {
    "11:00 PM": "Shop closes",
    "11:05 PM": "Liam enters via back door",
    "11:15 PM": "Murder occurs",
    "11:16 PM": "Liam flees"
  }
}