[Hunter-Digital]

This could be named "Victim hunt time" or something, time of death sounds like the actual system time when the plyer died O.o

Still, you should recode it, use a double array with 33 cells each... a wth, let me give you an example:

new g_iMaxPlayers
new Float:g_fFirstDamageTime[33][33]

//...

public plugin_init()
{
   //... hooks and stuff

   g_iMaxPlayers = get_maxplayers()
}

public player_spawn(id)
{
   if(!is_user_alive(id))
      return

   for(new i = 1; i <= g_iMaxPlayers; i++)
      g_fFirstDamageTime[id][i] = 0.0
}

public player_damage(id, attacker)
{
   if(1 <= attacker <= g_iMaxPlayers && !g_fFirstDamageTime[attacker][id])
      g_fFirstDamageTime[attacker][id] = get_gametime()
}

public player_death(id, killer)
{
   if(!(1 <= killer <= g_iMaxPlayers))
      return

   client_print(killer, print_chat, "It took you %.1f seconds to kill <name here>", get_gametime() - g_fFirstDamageTime[killer][id])

   g_fFirstDamageTime[killer][id] = 0.0
}

... something like that.

[Arkshine]

This plugin seems not be maintained. You should follow the Exolent[jNr]'s suggestion. Also, it's poorly coded.

Unapproved until you fix the plugin.