Oxnard police released a surveillance picture of the suspect who allegedly shot and killed Singh in front of an Oxnard bank.
The man is described as being in his early twenties.
Police say the shooting happened at about 9:30 a.m. on Saturday. Singh walked out of the U.S. Bank branch on Oxnard Boulevard, was confronted by the gunman, was shot and killed, and then robbed. Police and family say Singh had a significant amount of money.
"He's a hard worker and a very honest person," said Nirmal Singh, the victim's cousin. "We were running [the] business together ... myself, my other cousin."
Nirmal Singh and another cousin came to the United States over 20 years ago, with a dream of opening their own mini-market. They now own four stores.
Gurmohinder Singh was a solid part of the businesses. Going to the bank on Saturday morning was part of his routine.
"It was just a regular day, you know. He usually goes there, gets some money for the day-to-day business. So, he's been here more than 20 years. And he's been working 20 hours a day, just to make the dreams come true," said Nirmal.
Police and Singh's family are asking for the public's help to apprehend the suspect.
Oxnard police are not sure if Singh was targeted.
"It seems kind of strange, on one hand, to have somebody get robbed coming out of a bank after making a significant withdrawal. But on the other hand, there's nothing, at this point, pointing out that he was a target. So, it's all part of the investigation and we're hoping that we piece this thing together and make the arrest," said David Keith, Oxnard Police Department.
If you have any information on the suspect, you are urged to call the Oxnard Police Department at (805) 982-7070.
U.S. Bank, the City of Oxnard and Ventura County are offering up $21,000 for any information leading to the arrest and conviction of the suspect.