Jabari is bit for 6 damage.
Each of you may act in any order. (Whether the last two in the current round or the other two at the top of next round, everybody acts before the beetles next turn.)
Rolls
Ringo vs Sasha - (1d20+3, 1d4+2)
1d20+3 : (1) + 3 = 4
1d4+2 : (1) + 2 = 3
Ringo vs random ABJS - (1d4, 1d20+3, 1d4+2)
1d4 : (3) = 3
1d20+3 : (13) + 3 = 16
1d4+2 : (4) + 2 = 6