Disposing of evidence can sometimes be more incriminating than not.
Let's say he shuts up and gets a lawyer. His lawyer can say that maybe the real gunman noticed he looked similar, then switched bags on a bus. It's weak, but it's something.
If he tossed it in NYC, he leaves possible DNA at the scene. If he tosses it at home, the cops will likely find it and take his disposal as an admission of guilt.
IANAL but while I guess it's not good to have your lawyer run the Shaggy defence ("it wasn't me!") if the police have made an effort in the investigation then there's a surprising chance they'll find the evidence anyway.
At the very least that could be his rationale.
He didn't know if they had a van watching his house, and if his bins were being collected by the police. He might have been too scared and paranoid to do anything.
I can see someone planning meticulously the murder, the immediate fleeing thereafter but not the rest. If I remember images, he wasn't wearing gloves so he may have had to clean it before he planned to get rid of it. Plus he may have hit hiccups in the process that may have derailed part of his plans. The fact he had cash both in local and foreign money probably means he had planned to move out of the country but was kind of waiting for the dust to settle.
Let's say he shuts up and gets a lawyer. His lawyer can say that maybe the real gunman noticed he looked similar, then switched bags on a bus. It's weak, but it's something.
If he tossed it in NYC, he leaves possible DNA at the scene. If he tosses it at home, the cops will likely find it and take his disposal as an admission of guilt.
IANAL but while I guess it's not good to have your lawyer run the Shaggy defence ("it wasn't me!") if the police have made an effort in the investigation then there's a surprising chance they'll find the evidence anyway.
At the very least that could be his rationale.
He didn't know if they had a van watching his house, and if his bins were being collected by the police. He might have been too scared and paranoid to do anything.