Are they trolls?

WARNING:MASSIVE BLOCK OF TEXT

Today i played some League of Legends. I hopped onto the first match of the day. The moment my team spawned in, the first thing 3 of them did was go to mid lane. 1 other guy was afk. At first, I thought nothing of it. Maybe a new strategy? I decided to follow them, and i noticed all 3 of them were running straight into the turrets, and they all died. I sighed and thought: "Eh, we all fail ", but they respawned and did the same thing over and over, dying again and again. As you can see from the link I had provided for you, Malphite had a total of 19 deaths, no kills, no assists, and no minion or jungle kills. Also, Ziggs had 19 deaths, no kills, no assists, and no minion or monster kills. Ashe had 2 deaths, no kills, no assists, and no minion or monster kills. Our Renekton was afk the whole match. However, I, playing Garen , was the only one trying to fight, having 3 kills, no deaths, no assists, 90 minion kills and 8 jungle monster kills. We ended up losing, and I was frustrated, but shrugged it off, since it only happened once. BUT, I WAS WRONG.

https://matchhistory.na.leagueoflegends.com/en/#match-details/NA1/2727327224/242695391?tab=overview

The second match was not as severe as the first, but it was still a loss for us. This time, our Warwick had a brain, and so did I, as Tristana. Our Renekton commited tower suicide over and over, and our Garen quit after dying once , and Malzahar did the same. It was just Warwick (guy with a brain) and Tristana( the other guy with a brain, aka me) against 5 enemies. We lost, because we were outnumbered.

https://matchhistory.na.leagueoflegends.com/en/#match-details/NA1/2727328220/242695391?tab=overview

Now the third match, We had Veigar (me) , Udyr (a guy with a brain) , Ashe, Garen, and Darius. Ashe commited repeated tower suicide, Darius went afk and disconnected, and Garen didn't do much besides dying. Udyr and I tried to win, but we failed.

https://matchhistory.na.leagueoflegends.com/en/#match-details/NA1/2727329619/242695391?tab=overview

Fourth match, we had Garen ( ME ) , we had Darius (guy with brain), Brand (a guy who was trying to win) , Lulu(AFK), and Sion( tower suicide guy). Because of the fact that 3 of us were intelligent human beings, we managed to win (Brand died a lot but at least he was trying, I killed a few champs, and Darius murdered entire enemy team). https://matchhistory.na.leagueoflegends.com/en/#match-details/NA1/2727341546/242695391?tab=overview

So, what happened? Did I simply stumble upon trolls or was it some crazy black magic glitch stuff?

If you didn't get the tower suicide part, it means they ran into the towers repeatedly.

This took me 10 minutes to write.