execute on passengers if entity @s[tag=death_sentence_bar] run return fail
execute if entity @s at @s run summon text_display ~ ~ ~ {alignment:"center",text:'{"text":"\\uD500","color":"red","font":"minecraft:assassin"}',billboard:center,transformation:{translation:[0f,.3f,0f],left_rotation:[0f,0f,0f,1f],right_rotation:[0f,0f,0f,1f],scale:[0.5f,0.5f,0f]},Tags:["death_sentence_bar","newdeath_sentence_bar"],background:16711680,see_through:1b}
ride @n[tag=death_sentence_bar,tag=newdeath_sentence_bar] mount @s

execute on passengers if entity @s[tag=death_sentence_bar,tag=newdeath_sentence_bar] run tag @s remove newdeath_sentence_bar