Item #: SCP-XXXX
Classification: Euclid

Special Containment Procedures: SCP-XXXX is to be kept in a standard humanoid containment cell at all times. No personnel are allowed to enter SCP-XXXX's cell, except in the event of a containment breach. No visual recording devices such as cameras are allowed in the room. A Geiger counter is to be located in the cell at all times, and its readings monitored constantly to identify a possible containment breach.
All descriptions of SCP-XXXX are to be kept vague, so that creating an accurate image of it is impossible.
In the event of a containment breach, the victim of SCP-XXXX is expected to navigate towards its containment cell and enter. Then they are required to look directly at SCP-XXXX, since attempts of rescue without additional casualties or SCP-XXXX breaking containment are not possible. Following the death of SCP-XXXX's victim a robot will retrieve their body.

Description: SCP-XXXX is a 1.9 meters tall humanoid with dark-grey skin and an almost featureless face that lacks any visible cavities and sensory organs apart from two fairly humanoid eyes.
All tests regarding SCP-XXXX have been suspended indefinitely due to the near impossibility of researching it without casualties and/or a possible containment breach.

SCP-XXXX does not seem to require food or water, does not breathe, or age. However, an unknown type of radiation has been noticed to emanate from its body during phasing and teleportation. The radiation, named RXXXX, doesn't seem to affect humans or electronics in any way and is detectable by a standard Geiger counter.

The most important aspect of SCP-XXXX is its hostile reaction to all attention towards it and its tendency to "imprint". When a human enters its field of view, SCP-XXXX will place itself closely behind the persons back and start to follow them everywhere. If the person SCP-XXXX has imprinted on acts like the creature doesn´t exist, SCP-XXXX will remain docile. However, whenever the person imprinted on, or another human, looks directly at SCP-XXXX, speaks about it vocally in its presence, or otherwise acknowledges its existence, SCP-XXXX will phase its arm through the abdomen of the person, causing a cardiac infarct through unknown means. It will do this to everyone in its field of view who is somehow acknowledgin it, after which it will either imprint on its next victim, or stay completely immobile until it sees someone to imprint on. Meaning for this behavior is unknown.

SCP-XXXX also appears to have an ability to phase through any solid object with ease, suggesting that it could escape its cell whenever it wanted to, but this is not a problem due to its immobility when not imprinted. This behaviour would suggest that it has no, or only a minor sentience.
It has also proven to be capable of teleportation, because if looked directly at through a video feed or a picture, even a drawn one, it will instantly appear next to the viewer and kill them, no matter how long the distance is. How SCP-XXXX detects someone viewing a picture of it is unknown.

Recovery Log:
Reports of an invidual on a killing spree in ███████, Ohio, were intercepted by a Foundation operative placed in the NYPD, who reported to the Foundation due to the anomalous nature of the killer.
Mobile Task Force MTF Psi-1("City Slickers"), was sent to deal with the anomaly. Due to agents trying to engage SCP-XXXX, a total number of █ operatives were killed. The rest figured out how the anomaly operates, and were able to lead it into Foundation custody.
Witnesses were given amnestics and a cover-up story of a mental asylum escapee was fabricated to explain the deaths.