Man Sentenced to 15 Years to Life for 2008 Strangulation of Elderly Resident

June 20, 2014

CONTACT: Alex Bastian (415) 553-1931

                     Maxwell Szabo, (415) 553-9089


San Francisco- Frolian Marroquin, age 37 of San Francisco, was sentenced today to 15 years to life by the Honorable Charlene Kiesselbach for second-degree murder. On the afternoon of June 3, 2014, a jury found Marroquin guilty of second-degree murder for the killing of Nestor San Juan.

“The victim was a 73 year old man doing a good deed for the defendant, letting the defendant stay with him out of the kindness of his heart,” said District Attorney George Gascón. “The defendant has forfeited his right to live in our community and will spend the rest of his life in prison.”

At 11:15pm on September 9, 2008, video surveillance showed Mr. San Juan entering his residences at 520 Taylor Street. This was the last time he was seen alive. Video surveillance also caught the defendant entering the residence a few minutes later and coming and going throughout the night and into the early morning.

At 6:50pm on September 10th, the defendant was captured on video pulling a large trash bag out of Mr. San Juan’s residence only to pull it back into the residence once blood began to leak from the trash bag. The defendant then used white cloths to frantically clean the blood up.

The next day at approximately 11:00am on September 11th, video showed the defendant and a second man taking the trash bag down to the dumpster in the basement of the apartment building.

Later that day at around noon, the second man seen on the video surveillance ran into his therapist’s office hysterical, the lower half of his body spattered in blood. He described how the defendant had called and asked for his help in exchange for rice and cooking oil. The man went on to detail how the Defendant asked for his assistance in moving a large garbage bag. The defendant told the man it contained the carcass of a deceased dog. Suspecting that he had been duped into disposing of a body, the man asked his therapist to immediately call 911.

Officers responded to the 911 call, and with the assistance of the witness, located the body of the deceased, Nestor San Juan, in the dumpster in the basement of his apartment. San Francisco Police Department Homicide Inspectors located the Defendant the next day and took the Defendant into custody.

The post mortem examination of the victim showed the cause of death was ligature strangulation. In addition, the victim suffered 8 broken ribs and 3 broken vertebrae in his spine.

We applaud the citizens who assisted in securing justice by helping officers to locate and arrest the defendant. The successful investigation and prosecution of this case would not have been possible without the great work of SFPD Inspectors John Cagney, Mike Gaynor, Tom Newland, and Assistant District Attorney John Ullom.