Published date2002-2007 at least that is when we had it in Australia
Story– MC is a teen boy who doesn’t have any friends and is in high school, he is “good” however he is timid and very unsure of himself – he has a crush on a beautiful popular girl from school but she doesn’t know he exists- he makes friends with a boy who is nice to him and a little weird who has a group of friends outside of school so he introduces MC to them- the friends are all boys and they have extreme views and want to act out violently, however MC doesn’t care about this as he doesn’t think the boys will act on it and it’s better than being alone- one day the leader of the group devises a plan to kidnap someone from school to hold them hostage (for reasons I cannot remember sorry), the leader has a car and weapons and makes MC get involved as he is a weak character- it turns out the leader of the group wanted to kidnap the girl from MCs school who he has a crush on and he feels very conflicted about this but doesn’t know how to voice this and get out of the group or tell the police- they kidnap the girl and hold her hostage in a friend’s house but the kidnapping makes the news and it becomes a full blown investigation which escalates the situation quickly- MC had thought that they would just release the girl after the leaders demands are met however due to the kidnapping becoming breaking news he realises there is no way out- he tries to come up with plans to help her escape and make her feel less distressed without getting caught by the leader but it doesn’t work- the leader of the group decides that because his demands are not taken seriously by the police he will take the girl into the woods at night and kill her by hanging her- they tie her up and take her into the woods and put a noose around her however something happens and i think she slips and she suddenly becomes hung – at this point the police have found them and they all run away except MC who desperately tries to cut her free- he manages to save her however there’s a siege and the police find him and start shooting at him and so he runs- the story ends quickly after this chase as he is shot dead.
As you can see this is an incredibly dark story and I was super surprised that it was YA and in my school library! The book absolutely wrecked me for weeks when I was 15. I think it must be out of print as I can’t find it anywhere on google/goodreads.