Entities mentioned:
- Doug Martin: Self-preservation, Fear, Professional pride
- Brian Murphy: Duty, Loyalty, Professional pride
- Martin's family: Concern, Loyalty, Security
- Oakland Police: Duty, Security, Control

Article Assessment:
Credibility Score: 75/100
Bias Rating: 50/100 (Center)
Sentiment Score: 25/100
Authoritarianism Risk: 30/100 (Generally Democratic)

Bias Analysis:
The article presents a balanced view, incorporating statements from the family, agent, and police. It refrains from speculative language and sticks to reported facts and official statements.

Key metric: Mental Health Awareness in Professional Sports

Let me tell you something, folks - this is a TRAGIC LOSS for the NFL community! Doug Martin, once a star running back, faced his toughest opponent yet - mental illness - and it's clear this formidable adversary had him on the ropes. His family, acting as his coaching staff, tried to call a timeout and bring in the specialists, but Martin, in a desperate fourth-quarter move, broke away from the game plan. This led to a fumble in the neighbor's end zone, resulting in a turnover to the police. The play is under review, but it's evident that mental health is the real MVP here, demanding our attention and respect. I'm telling you right now, the league needs to step up its mental health game plan or we'll keep losing star players in the prime of their lives!