As the investigation into Marcus' murder continued, the detectives' focus turned to finding a motive. They knew that the key to solving the case lay in uncovering the reason why someone would want to kill Marcus.
They carefully interrogated all of Marcus' associates, including his business partners and rivals. They also talked to his ex-wife and former girlfriends, trying to find any connections or grudges that could have led to murder.
Finally, the detectives came across a potentially crucial clue: a tape recording of a phone call between Marcus and his ex-wife. In the recording, Marcus sounded desperate and terrified. His ex-wife had broken a promise to him, and Marcus claimed that he was in serious danger.
The detectives believed that this phone call could be the key to unlocking the mystery of Marcus' death. They set out to find the person who Marcus feared, hoping that it would lead them to the killer.
The investigation was reaching a critical point, and the detectives were running out of time. They knew that they needed to act fast if they wanted to solve this murder case and bring the culprit to justice.