第2336章 室内勘察
堆积的废旧设备、杂乱的管材、落满灰尘的托盘一览无余,地面裂痕、尘土、杂物清晰可见,而厂房中央的男性尸体,毫无遮挡地暴露在光束之下,视觉冲击力极强。
三人缓步走向厂房中央尸体所在地,脚步轻盈缓慢,严格遵循边缘勘查原则,从外围逐步靠近中心现场,规避破坏原始痕迹。
死者为男性,平躺于水泥地面,体态中等,身形匀称,身高约莫一米七五。上身穿着深色连帽防风外套,外套面料厚实,表面附着大量灰尘、细小划痕,衣摆处有不规则磨擦破损痕迹;内搭白色棉质打底衫,领口泛黄发黑,沾染少量不明污渍;下身穿着深灰色工装长裤,裤腿褶皱明显,膝盖处有反复摩擦形成的磨白痕迹;脚上一双黑色橡胶劳保鞋,鞋底纹路深邃,鞋缝卡满泥土、细沙,鞋侧沾有少量暗红色点状污渍。
死者头发偏短,发色乌黑,面部朝上,双眼圆睁,眼球轻微浑浊,瞳孔涣散无神,面部肌肉僵硬紧绷,嘴角微微张开,皮肤呈现出冰冷的青白色,毫无血色。脖颈处衣领微微敞开,喉结突出,颈部皮肤表层能看见淡淡的片状压痕,痕迹浅淡、边缘模糊,不仔细观察极易忽略。
杨林单膝跪地,动作轻柔缓慢,保持安全距离对尸体进行表层肉眼检查,全程不翻动、不按压尸体。他指尖悬空,避开皮肤表面,仔细观察体表特征,语气平稳客观,实时汇报勘查结果:“陆队,死者体表裸露部位无明显锐器创口,无大面积开放性流血伤口,手臂、手背、脖颈外露皮肤没有切割伤、穿刺伤。左手手腕处有不规则浅褐色擦划伤,表皮轻微破损,疑似硬质物体摩擦造成;右手手掌蜷缩,指节僵硬,掌心向内收拢。”
陆川站在一旁,目光冷静锐利,仔细扫视尸体周身环境,同时观察尸体僵硬程度:“判断一下大致死亡时间,结合环境温度、尸体僵硬状态分析。”
“现场环境阴冷潮湿,夜间气温偏低,室温维持在十摄氏度左右,低温会延缓尸体僵硬、腐败进程。”杨林专注观察尸体状态,语速平稳分析,“死者四肢僵直程度中等,下肢僵硬度高于上肢,手指关节轻微蜷缩固化,面部肌肉僵硬定型,结合环境、气温、尸僵综合判断,死亡时间初步锁定在八至十二小时之间,也就是今日中午十二点至傍晚四点这个时间段。”
杨森手持高清相机,多角度、无死角拍摄现场画面,远景、中景、近景层层递进,先拍摄厂房整体环境,再聚焦尸体摆放姿态、周边物品,最后放大拍摄细微痕迹。快门声低沉断续,每一张照片都精准留存原始现场状态,为后续案件研判留存影像证据。
“致死原因初步判定。”杨林继续汇报,目光锁定死者脖颈处,“体表无明显外伤、无大量失血痕迹,排除锐器刺杀、重度撞击致死。结合颈部浅淡压痕、面部轻微缺氧惨白、眼球结膜细微充血三点特征,初步判断窒息类死亡,大概率为外力压迫颈部阻碍呼吸导致窒息身亡,具体致死方式、受力工具需后续进一步核验。”
陆川微微点头,没有言语,缓慢环视整片中心现场。尸体周边三米范围内,堆放着废旧角钢、断裂钢管、生锈卡扣等金属配件,地面散落破碎纸箱、透明胶带、废弃捆绑绳索、塑料薄膜,杂物杂乱堆砌,无明显摆放规律。
尸体左侧两米处,一根空心钢管斜靠在金属堆上,钢管外壁光滑,表层浮灰有不规则擦拭痕迹,部分灰尘被人为抹去,露出底下暗沉的金属底色;尸体右侧地面,留有一枚清晰的半截鞋印,鞋印纹路工整,尺码偏大,纹路样式与死者脚上劳保鞋完全不同,大概率为第二人遗留。
“杨森,重点拍摄钢管擦拭痕迹、陌生半截鞋印,做好点位标记。”陆川沉声吩咐,目光始终锁定地面痕迹,“不要触碰钢管,保持原始摆放角度,记录钢管倾斜角度、离地间距。”
“明白。”杨森调整拍摄角度,镜头聚焦痕迹点位,精准拍摄高清特写,同时拿出白色物证标签,轻轻放置在痕迹旁做好标记,标签编号清晰,便于后续溯源核验。
杨林起身站直,目光扫过尸体周身地面,语气郑重补充:“陆队,尸体周边潮湿地面,提取到多枚残缺指纹。指纹留存于水泥地凸起颗粒处,浮灰覆盖,纹路清晰可辨,并非死者本人指纹。推测是嫌疑人触碰现场金属配件、墙体、杂物时遗留,目前已做好防尘保护,后续可提取录入系统比对。”
厂房内部空气干燥,地面常年积灰,这种环境极易留存人体触碰痕迹。凶手作案过程中,难免触碰周边物品,灰尘会完整保留指纹纹路,这是本案极为关键的痕迹线索。
除此之外,杨森在尸体后方的废旧托盘缝隙中,发现一小撮异色织物纤维。纤维呈浅灰色,质地细密柔软,绒毛感明显,材质偏向羊毛混纺,颜色、质感都与死者身上深色工装面料完全不同,大概率属于外来人员衣物遗留。纤维细微轻薄,极易被气流吹散,杨森动作轻柔,用专用透明物证袋小心翼翼封装保存,避免纤维遗失破损。
“现场痕迹汇总。”杨林一边记录,一边条理清晰汇报,“第一,陌生人类指纹多枚,留存于钢管、水泥地面两处,非死者本人;第二,陌生半截鞋印一枚,尺码四十三码,纹路为波浪防滑纹,区别于死者四十二码直纹劳保鞋;第三,浅灰色羊毛混纺纤维一小撮,来源不明;第四,金属钢管存在人为擦拭痕迹,疑似凶手刻意清理接触痕迹;第五,地面杂物摆放凌乱,部分物品有移位、翻动痕迹,疑似案发前后发生过肢体冲突。”(本章完)
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