It is my understanding that due to the immence gravity of a black hole and the way gravity affects the flow of time, that from the point of view of an observer at a safe distance from a black hole watching any object fall through the event horizon you can never see an object fall through due to how its flow of time changes relative to the observer. Its time will appear to become slower and slower until it appears to freeze infinitely close to the event horizon. From the point of view of the object falling through the event horizon it continues to fall all the way to the singularity. If that object could turn and look back out through the event horizon it would see time speed up infinitely.

Im having a hard time understanding, if the above is true, why black holes are not glowing bright with images of everything they have ever 'eaten' just above or at the event horizon. From our perspective, all the matter which has ever fallen into it had a clock which slowed to a stop the moment it hit the horizon despite the fact that from their own perspectives they went right through.