yes you are right about miruna and deaths shadow taking my first fruit but then on my turn i killed miruna cause i knew on his turn turn he would consume her. so i don't know how he got the 2nd fruit. that bhargest was played earlier in the round.
Killing Miruna yourself will also trigger her deathwish effect.
That's the concept of deathwish - when the unit dies, its effect triggers. The only situations where it wont trigger is if the unit is locked or if it is banished.
Looks like we solved the riddle
As DRK3 points out, deathwish effect will resolve once the deathwish unit is destroyed by any mean(damage, being consumed, weather, etc).
There's a couple of notable exceptions.
You can banish it with Korathi Heatwave wich will not trigger deathwish.
You can use Northern wind( the 5prov card that on deathblow it banishes the unit that was damaged. Since this card deals 4 damage, it will always banish a non boosted Miruna(same with rotfiend, fogglet, harpy egg, etc.)
If locked, the effect will also not work. Killing a locked Miruna is like killing any other unit, it won't proc it's deathwish.