If you were wondering what the men accused of beating disabled homeless man ai Lam look like, wonder no more: Friday morning, the San Francisco Police Department released the booking photos (aka mug shots) of the three men arrested for the two-year-old crime.

It was the night of November 23, 2014, and the 67-year-old man was asleep in a Financial District alley near Montgomery and Sutter, where he retired most nights. According to reports at the time, family members had openedup their houses to him, but Lam had declined, preferring to sleep in the rough. But that night was different,
as three men who police say "attended an event in the neighborhood" had a brief chat with a Crocker Galleria security guard, stopped for a smoke, then set upon Lam.

The men walked away following the initial attack, then returned a second time, kicking and beating Lam again, then-Lieutenant Toney Chaplin said at the time.

Lam "was unable to defend himself. He died alone after suffering these horrendous attacks."

After years of investigation, police caught a break: DNA evidence from a car theft in Washington matched evidence from the crime scene, leading investigators to 21-year-old Joseph Stull of Idaho. During questioning, Stull reportedly implicated himself in or confessed to the crime, providing explicit details of the beating and pointing the finger at 21-year-old David Peters of Stockton as one of his conspirators.

Both were booked into San Francisco County Jail, and pled not guilty on November 2 to charges of murder, second-degree robbery, inflicting injury on an elderly or dependent adult likely to cause great bodily injury, and assault with force likely to cause great bodily injury.

According to a press release the San Francisco Police Department sent with the booking photos this morning, "On November 16, 2016, SFPD Special Investigation Division along with the assistance of Stockton PD located and arrested 22-year old, Anthony Gibson-Brum in Stockton, California," allegedly the third suspect in the case. As previously reported, he was scheduled for arrangement Thursday, and like his alleged companions, remains in San Francisco County Jail, with bail set at $5 million for each.

Police say that though the trio have been arrested, investigators are still seeking additional evidence in the case. They ask that anyone who recognizes the suspects or has information on this case to contact the San Francisco Police Tip Line at (415) 575-4444 or Text-a-Tip to TIP411 and begin the text message with SFPD.

Previously: Third Suspect Arrested In Horrific Beating Death Of Man Sleeping On SF Street