Ahh, but it didn't matter if he fumbled the gun. Because, he wasn't ever going to use it, and he knew that.
Where was the need? He was kidnapping an 84 year old woman with mobility and health problems. No-one needs any sort of weapon for that.
I think he was only carrying it on the off-chance he ran into someone in the neighborhood who may have come across him and tried to stop him in the act, or if LE were called he could've fired at them.
But this was all unlikely, and the perp knew it. It was nearly 2am in a safe neighborhood on a very dark Sunday night. No-one was about, no-one saw, and it all went as planned.
MOO.