Commentary
I bet that incident will happen in this episode.

Oh, the way he smiles. I've watched GoT's Red Wedding, btw.
So...

Turk Barret? Sigh. I thought he was in jail.

Misty Knight, huh? That's cool.

Is it really her name? I'm kind of confused.

Eh, the bubble text. That's a new thing to come to Netflix show.
I watched about it in YouTube before. Let's see if I can find the link. Update: A Brief Look at Texting and the Internet in Film, this is really good video. That channel's basically making a lot of good videos.
Anyway, thing's gonna be fucked up from now on.

Noooooooooooo.

I'm still not sure though about this Shades guy. If he really wanted to stop Tone to bombard Pop's barbershop, he should've tried even harder, like told him that Cottonmouth wouldn't be happy if he knew that they harmed his friend properties and life. I think Shades has his own agendas, and being close around Cottonmouth is clearly one of them.

LOL.

Even Cottonmouth is mourning for his old friend.

"Forward... always."

Verdict
So, there it is, the incident indeed happened in this episode. No surprise, but I'm totally fine with the way it's executed. Instead of covering Pop, Luke grabbed Lonnie. As good as Pop mentoring him, Luke need to be stand out alone. So we can see him make his own decision. But Pop deserved a huge credit, not only for Luke, but also other young boys around him that he had helped. That's make him special, even for Cottonmouth himself.
Overall it is a solid episode, and there's some nice touch with Turk Barret's presence from Daredevil series to keep reminding the audience that this show is a part of something bigger universe.