Winery owner Robert Dahl left behind lawsuits, angry business partners and a family when he shot to death an investor in his Northern California vineyard and then killed himself.

Dahl killed former Silicon Valley executive Emad Tawfilis on Monday at his Napa Valley winery. Dahl led police on a high-speed chase before shooting himself in the head.

In recent months, Dahl's mounting problems were closing in on him. He was facing ruinous financial penalties in the loan dispute and contempt charges for selling pricy wine-making equipment in defiance of a judge's order. He and his companies were hit by four additional lawsuits in Napa County last year, including one by planning officials who said he failed to obtain the proper permits to operate his 10-acre Dahl Vineyard.