Google product manager Sonam Saxena was arrested and then released as police continue their investigation into the disappearance and death of his wife, Smriti Saxena.

Smriti, who was a Microsoft business program manager, was reported missing by Sonam on Tuesday while the Seattle couple was vacationing in Hawaii.

Smriti's body was discovered on a beach on Wednesday, and Sonam was arrested on a count of second-degree murder, then released the following day as police said an investigation was ongoing.

Authorities have not determined a cause of death.

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Google product manager Sonam Saxena reportedly called the police in Anaehoomalu Bay, Hawaii, on Tuesday night begging for help — he said his wife, Smriti Saxena, had gone missing. Two days later he was arrested on a count of second-degree murder in connection with her disappearance.

Saxena was released from police custody Friday afternoon, but is still a suspect in the case, police said.

The Seattle couple were vacationing in Hawaii and spending time on the beach Tuesday when Smriti began having an asthma attack, Sonam told West Hawaii Today on Wednesday. Sonam said he walked back to the Waikoloa Beach Marriot Resort to get his wife's asthma inhaler, and that when he returned, her phone and purse were still on the beach but Smriti was gone.

In addition to calling the police and giving an interview to West Hawaii Today, the 43-year-old product engineer tweeted a plea for help finding his wife, 41, Wednesday evening.

Later that day, Hawaii Island Police arrested Sonam on a count of murder in the second degree after discovering a female body on the beach "in the general area where Smriti Saxena was reported as a missing person and last seen Tuesday evening," Hawaii police wrote in a news release.

As of Friday afternoon, police said an autopsy confirmed that the body belonged to Smriti, but that further testing was needed to determine the cause of death.

Smriti and Sonam both lived and worked in the Seattle area, where Sonam worked for Google and Smriti worked for Microsoft.

Sonam moved to Seattle from India in 2008, initially working at SkyKick, a cloud-computing company. According to one of his coworkers, Sonam was known in the office for being personable and outgoing.

"SkyKick is a small company and he was always very pleasant to talk to, very conversational," SkyKick engineer Jianguo Jiang told Business Insider. (Disclosure: Jiang's daughter, Irene Jiang, is a Business Insider reporter.)

Jiang said that he rarely heard Sonam discuss his personal life or family and never heard anything to suggest that there was marital strife between the couple.

"This is a surprise to me — I wouldn't expect it," Jiang said. "I would not imagine he'd do it."

A representative for Google did not immediately respond to requests for comment. A Microsoft spokesperson declined to comment.