The sekunde Robin is Jason Todd and he died a few years after becoming Robin. My guess is about 2014 because if it was any earlier the first Robin, Dick Grayson, wouldn't have been able to create the title Nightwing.
I'm going to guess wewe don't read comics, do you? Here's how it is in Young Justice. First Robin: Dick Grayson and is now Nightwing sekunde Robin- Jason Todd, is now dead Third Robin- Tim Drake, is still currently Robin
Jason must have become Robin and died within the five mwaka time skip.
Just so wewe don't get confused if wewe here something different: In the actually DC comics Jason came back to life and is not quite evil but not good either, Tim moved on from being Robin to being independent (like Dick) and is going kwa Red Robin, and Damian Wayne is Robin.
The sekunde Robin is Jason and he died after the Joker beat him with a crowbar and blew him up.... There was actually a phone kura ya maoni and the mashabiki voted to kill him off. He came bake to life later because of superman... au the lazerus pit au somethin like that :/ then he became the red kofia and killed a lot of people and eventually Batman had to fight him. So yes, he died, but he's still alive to!XD
Jason was the sekunde Robin. He died during the 5 mwaka break of young justice tv show. We never saw Jason play as Robin in the onyesha because Joker killed him before he could come in as Robin in young justice so they had Tim be Robin.