Bill arrived at the crime scene, carrying his bucket-o-coffee. He'd already been up several hours at this point. He'd spent the morning, rather than deep in visions, poring over his family's notes. While most who practiced native magic had generations of tradition reinforcing everything, his ancestors were new to the practice. They took notes. This guy could quite possibly kill them with his mind. Bill was researching protective rites. Two complications with those... they tended to be specific the types of spirits the protected against... I.E. Spirits, not people. The other would be he would NEED his fellow detectives there if he wanted to extend the same protection to them.
He flashed his badge as well as he made his way in. "Morning," was all anyone got in the way of pleasantries. The guy he didn't know got a "Bill Johnson," as he held out a massive hand for a shake. Whether or not the other reciprocated, Bill would take no great issue. His other hand downed a long pull of coffee, as he began to examine the crime scene.
This would be the first time everyone but Jason would see Bill's investigative technique... and he'd only seen it for a moment. Bill made it into the room with the corpse, and the madness. He squatted down by the door, and for all appearances, did nothing but watch and breathe for a few moments. The scent of death, even fresh, was distinctive to his animal half. Fire... burned flesh, but not much. Excrement and urine from the bowel muscles loosening post-mortem. The killer's scent. Water. Wood freshly exposed to air. Then he did something strange. After sweeping his eyes over the scene, he took off his glasses. Thick as they were, they couldn't be for show. He waited a second or two for his eyes to adjust to the blur as much as they could... And then he quickly slid his glasses back on, and searched quickly, looking for anything that jumped out as his vision became clear again. It helped him take a second look at things with fresh eyes. Might be all psychosomatic, but it had worked for him before.