Weber made it 2-0 at 19:52 on a delayed penalty. After Tatar was knocked to the ice by Rangers defenseman Brady Skjei, he sent a no-look pass to Weber, who scored on a wrist shot from the slot.
"That was a crusher," New York coach David Quinn said. "I'm not going to lie to you, that was a crusher."
Weber said, "[Tatar] made a good play. We spent at least 30 seconds in our own end battling and he kept fighting up the wall there. And to be honest with you, I wasn't even sure if we were still playing. It seemed like everything kind of stopped for a second and I decided to just shoot it and I guess it went in."
It was Weber's 18th multigoal game in the NHL, his first since Dec. 5, 2017.
"Yeah, that hurts," Rangers forward Chris Kreider said. "I thought we played a pretty strong 20 minutes, but that's hockey sometimes, right? I thought we were tilting the ice pretty good and we come away down two. It's gone the other way for us a couple of times, too. We've been outplayed and we've been able to pot our chances here and there. So it's hard because then I think we get a little overanxious."
Lehkonen extended the lead to 3-0 at 2:04 of the second period, scoring short side from the left circle on a 2-on-1. He made it 4-0 at 5:29.