Thanks! I still don't see how it's an argument that the attack wasn't planned by somebody else, but it is at least obvious, if I understand that the route of the attacke is confirmed, that the attacker himself wasn't prepared to disappear as soon as possible but to simply run for a while.
https://goo.gl/maps/TWwgVMsroFnSkNH89
Here is the hot dog stand the couple walked past. The owner thought he saw someone following them.
https://goo.gl/maps/QysTTnjg8ek9PiRy5
Murder scene. The killer ran into the street after shooting Palme and attempting to shoot his wife.
https://goo.gl/maps/biseEKdGTw9A3mzK6
The killer ran up this flight of stairs. Another indication that he wasn't a professional. The stairs were ice-covered and slippery so he would risk falling.
https://goo.gl/maps/DMqBznb8jVgTv4ci7
After the stairs, it is not known what route he took. According to most witness accounts, he ran straight. Some believe he ran to the left though, towards the cemetery and hid there.
https://goo.gl/maps/UWMHDfSCeoyi1nc67