### Instruction: Who was Bosch's dad?
### Input: Bosch's mother was a prostitute in Hollywood who was murdered on October 28, 1961, when Bosch was 11 years old. His father, who he met later in life, was Mickey Haller Sr., a prominent defense attorney known for representing mobster Mickey Cohen, among other clients.
### Response: Bosch's father was Mickey Haller Sr. a well known defense lawyer.