Hedge fund manager Thomas Gilbert Sr. died this weekend.

The son of Wainscott Capital Management founder Thomas Gilbert Sr. was charged with murder after allegedly having staged the shooting death of his father to look like suicide, New York Police Department officials said.

Thomas Gilbert Jr., 30, was taken into custody about 11 p.m. Sunday at his Manhattan home where Robert Boyce, chief of detectives, said police found a “substantial amount of evidence,” linking him to his father’s murder earlier in the day.

Authorities responded to a call about 3:30 p.m. on Sunday and found Thomas Gilbert Sr., 70, in a bedroom of his eighth-floor unit — a .40 caliber Glock on his chest, with his left hand covering the gun, according to police. The body was found by Gilbert Sr.’s wife, who had stepped out for about 15 minutes to buy some food, police said.

They said officers went to Gilbert Jr.’s home about 9 p.m. Sunday and staked it out after a light in his apartment went out. Police said a search was conducted about 1 1/2 hours later and .40 caliber clips, some loose ammunition and a box for a Glock were found at the site.

Gilbert Jr. is being held in police custody pending an arraignment.

The elder Gilbert spent decades investing in stocks, as well as private-equity, real estate and fixed-income markets, before starting his fund in 2011, according to Wainscott’s website. It focuses on biotechnology and health-care investments.

Wainscott reported assets of $7.3 million and returns of 10.6 percent through November, according to an investor who has seen the fund’s performance and asset data. It had three-year annualized returns of 22.5 percent, said the person, who asked not to be identified because the information is private.

The elder Gilbert previously co-founded Syzygy Therapeutics, a biotech private-equity firm, where he stayed for a little more than a year, according to his LinkedIn profile. Before that, he was founder and chief executive officer of Knowledge Delivery Systems Inc., a provider of online teacher education where he worked for a decade. He also had worked as a managing director at Loeb Partners Corp., where he spent seven years in its private-equity group.

The investor was a graduate of Phillips Academy in Andover, Princeton University and Harvard Business School, according to his profile.

The son, a graduate of Deerfield Academy and Princeton University, according to his Facebook page, had made preparations to follow in his father’s money-management footsteps. In May of last year he filed with the Securities and Exchange Commission to raise money for a hedge fund, Mameluke Capital. The address for the fund was the same as an address listed for Gilbert Jr. in public records.

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