|Full name||Tanner O' Brien|
|Partner(s)||Polly O'Brien (sister)|
|Appears in||Criminal Case: Pheadmouth|
|First appeared||Case #1: Get the Finger Out|
Tanner O'Brien (also known as "The Collector") was a suspect in the murder investigation of Irish pub owner Ryan Patrick in Get the Finger Out (Case #1 of Pheadmouth) and a quasi suspect in Fashionable Tragedy (Case #3 of Pheadmouth). He later turned out to be the killer of real estate buyer Amru el-Ismail in Heads Up (Case #6 of Pheadmouth) and the stealer of several human body parts in the name of "The Collector".
Tanner is the 37-year-old leader of a street gang. He has shoulder-length brown hair and green eyes. He is seen wearing a blue shirt underneath a red sleeveless jacket. He also wears a scarf and a green four-leaf clover brooch.
In his first suspect appearance, it is known that Tanner drinks beer.
In his second suspect appearance, it is discovered that he eats steak, has traveled to Fario and knows how to fight.
Events in Criminal Case: Pheadmouth
- Get the Finger Out (Case #1 of Pheadmouth)
- Fashionable Tragedy (Case #3 of Pheadmouth)
- Heads Up (Case #6 of Pheadmouth)