Authorities are investigating the mysterious death of Chuchu Ma, the 23-year-old Google engineer who was discovered floating half naked along the San Francisco Bay Trail in Sunnyvale, California on Dec. 7.

Ma’s body was accidentally found face down in a drainage canal in Baylands waterway by a cyclist identified as Dan Coyle, who frequents the Bay Trail in Sunnyvale, at around 10 a.m. last Thursday, according to FOX KTVU.

“It’s very sad. this is a beautiful trail. I take it five days a week. Lots of people take it every day. and some people take it to work. It’s just very sad to learn that happened, whatever it is,“ Coyle said.

On the same day, Ma’s unnamed boyfriend reportedly filed a missing person report with Mountain View police.

The Santa Clara County Sheriff dive team recovered the remains of Ma. Sunnyvale Police are still trying to figure out if her body was dumped into the bay or if it floated from somewhere else.

Investigation into the case is still ongoing. Autopsy and toxicology reports could take several weeks, according to the coroner’s office.

“The medical examiner and us and our detective units are actively working the investigation to see what there were. we don’t know the circumstances of why the body was in the water,” Sunnyvale Department of Public Safety Officer Shawn Ahearn said.

Authorities have contacted anyone who might know further details behind Ma’s mysterious death.

“We’re talking to family, we’re talking to friends, we’re talking to acquaintances, we’re trying to get a picture of what was occurring up to that point and beforehand,“ Aheard said, according to ABC News.

Google, meanwhile, has released a statement about the incident. The company’s spokeswoman, Gina Scigliano, wrote: “Chuchu was an excellent software engineer in our developer product team. We are devastated to learn of her passing, and our deepest condolences are with her family and friends.”

Ma, who graduated from University of Texas-Austin in 2016, had worked for Google as a software engineer for the past year and a half.

Featured Images via Facebook / Chuchu Ma (Left, Right)