UT "Wendy's Guy" victim of April homicide, suspect in custody Copyright by KXAN - All rights reserved Ishmael Mohammed, the "Wendy's Guy", victim of an April homicide (KXAN Photo) [ + - ] Video

AUSTIN (KXAN) -- The possible suspect in a North Austin homicide case last month is in jail on unrelated charges, police said Tuesday.

At 1:10 a.m. on Friday, April 8, an off-duty Austin police officer working for Capital Metro saw a man slumped over on a bench near the intersection of W. Rundberg Lane and N. Lamar Boulevard.

EMS took the man, identified as Ishmael Mohammed, 60, to University Medical Center Brackenridge where he died three days later. Police say on April 7, Mohammed was involved in an argument that turned physical. The Travis County Medical Examiner's Office ruled his death a homicide.

Nikolas Ray Eller, 38, has been identified as a possible suspect in the case and is currently in Travis County Jail on unrelated charges.

Copyright by KXAN - All rights reserved Nikolas Ray Eller police booking photo - Austin Police Department

Copyright by KXAN - All rights reserved Nikolas Ray Eller police booking photo - Austin Police Department

Mohammed, also known as "Junior," became well-known as "The Wendy's Guy" after setting a world record in 2005 for most sales at a fast food restaurant in 30 minutes, when he worked at Wendy's in the Student Union.

He was also the subject of a short documentary that premiered at South by Southwest the following year. He left in 2012 for personal reasons and was homeless for the last few years.

Detectives are asking anyone with information on the homicide to call their tip line at 512-477-3588 or Crime Stoppers at 512-472-TIPS. You can also text "Tip 103" and your message to "CRIMES".