Akim killed Lina in the movie Stillwater.
While Allison, Lina's friend, was initially implicated and imprisoned for the crime, she was not the one responsible for Lina's death. The actual killer was Akim, who tragically misunderstood Allison's intentions.
The True Culprit: Akim
The events leading to Lina's death involved a grave misunderstanding. Allison had been in a fight with Lina and, wanting her out of their shared apartment, hired Akim to remove Lina. However, Akim misinterpreted Allison's request and, instead of simply removing Lina, he ended up killing her. Allison was devastated and felt deep remorse over the incident, as she never intended for Lina to be harmed, only for her to leave.
The narrative of Stillwater centers around Bill Baker, Allison's father, as he attempts to clear her name and uncover the truth behind Lina's murder, ultimately revealing Akim's culpability and the tragic misunderstanding that led to the death.