I’m writing a story. Can post traumatic stress disorder lead to suicide? And if so, what would one act like shortly before the suicide?
The cause of the PTSD for the character is seeing the love of his life brutally murdered in front of him.

There is evidence that traumatic events such as sexual abuse, combat trauma, rape, and domestic violence generally increase a person’s suicide risk. Multiple factors contribute to suicide risk in veterans.

Some of the most common factors are listed below:

male gender

alcohol abuse

family history of suicide

older age

poor social-environmental support (exemplified by

homelessness and unmarried status)

possession of firearms

the presence of medical and psychiatric conditions (including combat-related PTSD) associated with suicide