Reddit reviews The Interpersonal Theory of Suicide: Guidance for Working with Suicidal Clients

Are you familiar with Thomas Joiner's work? Although his goal is a bit different in that he's looking for unifying characteristics among suicidal individuals (and he may well have found them), he starts from historial models including Durkheim's, and dervices a model with 3 necessary and sufficient risk factors for high risk of death by suicide. He then explores how the model fits the various (apparently) different categories of suicidal person. As I recall, he does discuss Durkheim's categories pretty thoroughly in his first mainstream book and in his review for clinicians.

I actually use his model as the foundation for the talking tips post the we pulled together for the /r/suicidewatch community; the last part of that has a very quick overview of his model.

His work actually validates a lot of things that have become standard practice at suicide hotlines (I answer one IRL) because the empirical data has shown them to be uniquely effective, such as focusing primarily on rapport and interpersonal connection.