The San Francisco Police Department says they've caught the man who allegedly stabbed a popular local DJ outside a downtown nightclub, just a day after the stabbing victim died at the hospital.

As previously reported, 29-year-old Joseph Razo was stabbed early in the morning of January 25 during an altercation with at least seven other people outside The Cellar, a nightclub at Sutter and Taylor Streets.

He was still at San Francisco General Hospital being treated for his injuries when he died Tuesday night.

“He was stabbed in the aorta and he had severe internal bleeding,” Razo’s girlfriend of two years told the Chron.

“His lungs collapsed. They got those functioning again, and he had daily surgeries for different things.” Razo went into a severe decline on Tuesday, and after he lost brain activity, his family had his life support removed. He died shortly thereafter.

According to SFPD spokesperson Officer Gordon Shyy, investigators with SFPD's homicide unit had "developed information" identifying 22-year-old San Francisco resident Nester Conchola as the suspect in the crime. By 6 p.m., they'd pulled Conchola over near Burrrows and Madison Street, and served a search warrant at a home on the first block of Linda Street, in the Mission District.

During the search, "evidence was seized," Shyy says.

The Ex reports that "Canchola cannot be charged at this time, but the case remains under investigation." He has, however, been booked into San Francisco County Jail on suspicion of murder, attempted murder and assault with a deadly weapon other than a firearm.

Both the Chron and the Ex have spoken extensively with Razo's family and friends, painting a picture of a well-loved man. A bilingual data analyst who'd been contracting with Apple since April 2014, by night Razo was a DJ who had played across California and in Seattle and Atlanta, NBC Bay Area reports.

The night of the attack, reports the Chron, Razo had been out with three friends when the club shut down around 1:45 a.m...He and a friend started to head off, but noticed their other buddies were being attacked by a mob of at least seven people in front of the nightclub."

"Razo and his friend ran to help and were immediately pulled into the violent fracas. Someone in the crowd then pulled out a knife and began stabbing Razo and his friend before the group of attackers ran off," the Chron reports.

“We don’t know what happened, but I think it’s pretty clear that this was a random act of violence that could have been avoided,” one of Razo's friends told the Ex.

“We miss him.”

Previously: Man Stabbed During Tenderloin Brawl Dies In Hospital