Spoiler warning: Spoilers for the complete limited series.
Josh accidentally killed Clint while protecting Aqua, then left Kat because he could not face her grief. Missing You brings the couple back together before Kat learns the full truth, making their reunion the beginning of another difficult decision.
Why did someone else confess to Clint’s murder?
Clint confronted Aqua after she saw him with Parker, the man he secretly loved. The confrontation became threatening, and Josh intervened. Stagger subsequently arranged for Monte Leburne to take responsibility for the death.
This cover-up was presented as protection for Kat and her mother. In practice, it also denied Kat the information she needed to understand why both her father and fiancé had disappeared from her life in different ways.
Josh’s fingerprint on the weapon finally breaks that arrangement. His confession answers the question Kat’s investigation could not leave alone.
Was Josh running the dating scam?
No. Titus’s organization used stolen photographs to create false profiles, including one resembling Josh. The criminal operation and Josh’s disappearance intersect through that image; they are not one scheme designed by her former fiancé.
Kat rescues Dana and Brendan from Titus. Solving that case provides a concrete outcome for the missing-person investigation, while the fingerprint takes her back into her own family’s history.
The two resolutions demand different responses. She can stop a kidnapper through her work. No arrest can tell her what to feel about Josh.
Does Kat forgive him?
She reaches toward him after hearing the truth. The series ends before showing how they rebuild trust or whether they can sustain a relationship afterward.
Reaching out can reasonably be read as a willingness to remain connected. Calling it complete forgiveness would make the gesture carry more certainty than the ending gives it.
Kat has spent years treating Josh’s return as the missing piece of a happier life. The finale returns the person but changes the question: can she choose him once the explanation for his absence is finally part of their relationship?
Sources: official ending breakdown.