Watch Lethal Weapon Online: Season 3 Episode 4

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Why did Cole leave the CIA?

That's what Murtaugh tried to find out on Lethal Weapon Season 3 Episode 4 when his new partner's world was rocked by the arrival of a person from his past. 

However, Murtaugh also had to wrestle with his own mistakes after a murder raised questions about a suspect he put away several years before. 

Meanwhile, Leo Getz returned and got to work to try and get Trish to join his team. 

Use the video above to watch Lethal Weapon online right here via TV Fanatic. 

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Paul Dailly is the Associate Editor for TV Fanatic. Follow him on Twitter.

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