was clean but the door and the knob werenât. Prints were all over the office, most of them smudges or partials. So far, no matches with FBI files or any other files. My guess is they belong to patients, Mrs. Watson, and the doctor himself. Speaking of prints, what about the cleaning serÂvice?â
âCommercial company. A crew of two came in at six-Âthirty according to their records. Emptied trash cans, cleaned the floors and bathroom. Gone by seven and on to the next office. Said the door was locked when they came in; they used their company passkey and locked it again when they left.â
âAnyone see Dr. Michael?â
âYep, both of âem. He was working at his desk. Both are immigrants and donât speak much English.â
âThatâs convenient. How can we be sure they didnât knife him, intend to rob him, but something went wrong?â
âWe donât. Seems unlikely, though, since a call was made from the doctorâs desk phone around nine and our cleaning serÂvice was working in another building by then. There are witnesses.â
âWhat about the call? Have we traced it yet?â
âStill working on it.â
âLet me know.â Cancini mind turned over the little evidence they had. âLetâs assume all weâve been told is true. That means Dr. Michael was still alive in his office after seven P.M. , after the cleaning serÂvice had left. Letâs also assume the door is locked as they claim. After that, someone, either the victim or possibly our perp, used the phone at approximately nine P.M .â He paused, hands shoved deep in his pockets. âFor now, based on the fact that no blood was found on or near the doctorâs desk, Iâm going to assume the doctor himself used the phone. With me so far?â
Smitty nodded.
âHeâs alive at nine. Is the perp already there? We donât know.â Cancini paused and stretched his neck again. âDamn, that hurts.â
âYouâre old.â
âTell me about it. All right, I think we can safely assume the murder took place at the secretaryâs desk and not in Dr. Michaelâs office. Since we have no evidence to place the perp in the office where the call was made, letâs assume the perp hadnât yet arrived. Sometime after the call, Dr. Michael is knifed in the back.â
âMakes sense, but how did he get in?â
Canciniâs eyes came to rest on the younger man. âThatâs the question, isnât it? Did the perp come in with a key or was he let in by Dr. Michael himself?â
âAccording to Mrs. Watson, only she and Dr. Michael had keys,â Smitty reminded him. âHe must have let his killer in.â
âMaybe,â Cancini said. âLetâs look at it a different way. The murder weapon was clean and the doorknob wasnât. Based on that, I think itâs safe to assume the perp was wearing gloves.â
âOr wiped the knife clean.â
âI donât think so. First, if you take the time to wipe the knife clean, youâre going to wipe everything you touched. The print guys didnât find any other surfaces that had been wiped. Second, although the knife handle was clean of prints, there were blood spatters that werenât wiped away. He must have been wearing gloves.â
Smitty considered this information. âOkay, Iâll buy it. He was wearing gloves, but that also implies the murderâÂor some other crime that led to the murderâÂwas planned, at least to some degree.â
âExactly. So, until we get something that disproves our theory, the murder was at least partially premeditated. Our perp is either someone who knew the victim and was let in or had access to his office through one of the keys we know about. If we assume premeditation, our perp knew enough to know the victim would work late that night.â
âLike one of his