He shot his wife Olga in a fit of jealousy over Bror Blixen. He thought he had killed her (which he hadn't) and rushed outside and shot himself

Ancestry Family Tree says marriage to Olga was in Mombasa 1914.

Nairobi Forest Road Cemetery - Emil Holmberg, Swedish, age 42, died 22/12/26

Holmberg - arrived in Kenya from Sweden to help Bror Blixen start a coffee farm.

Holmberg - "My father, Emil Holmberg, joined the British Forces at the outbreak of WW1 in 1914. Together with Baron Erik von Otter, MC, among other Swedes, he served throughout the war. They were both in the KAR Maxim Gun Section ………

Chandler - An early Kenya settler, Holmberg and his wife Olga owned a farm in Thika …….. Served with the British forces in WW1. He later was a founder of the Selby and Holmberg Safari Company. He was the father of professional hunter Andrew Holmberg.

Aschan - Emil and Olga Holmberg were an oddly matched couple. Olga was a vivacious lady and not unfamiliar to the occasional flirtation. However, when he paid too much attention to their English nanny, she banished him temporarily from the house under the pretext of recruiting more farm labour. Her humiliating discovery infuriated Emil, and his fury did not abate during his absence. Krister Aschan and Ake Lindstrom (Gillis' nephew) were dining with Olga when Emil returned late one evening. He burst through the door, eyes blazing. Without a word he drew his pistol, shot Olga through the chest, then took his own life. Miraculously, for he was a good shot, he missed killing Olga. Ake got her to a doctor and she subsequently lived to a grand old age, bolstered by champagne, taken on doctor's orders. Meanwhile, my father [Krister Aschan] was left to cope with the body of poor Emil. Unaccustomed to such nocturnal drama, he thought it best to get the advice of a fellow Swede, Sten Tham, who farmed on the same ridge. Laying Emil's inert form in the back of his box-body car (a small truck with a roof over the bed but with open sides), he drove up to Tham's. Sten greeted him and asked him to dinner. Father declined, saying he had Emil in the back. "Well, bring him in too. Hey, Emil, come on out and have something to eat," shouted Tham, then turned questioningly to my father. "What's he doing in the back anyway?" Father replied simply, "I'm afraid he's dead."

Bror - 1914 - The day before the declaration of war a few Swedes were assembled in my house - Erik von Otter, Helge Fõgerskold, and Emil Holberg, all now dead. Next day Erik von Otter and I bicycled into Nairobi and reported ourselves at the recruiting office which was already open. Von Otter went into the KAR and I myself joined a corps which had been formed by an old SA friend of mine named Bowker and bore his name Bowker's Horse.

Aschan - [Blixen's coffee farm] - the work was supervised by Blix and six European managers, among whom were the Swedes Ake Bursell, Emil Holmberg, and Ture Rundgren.

Buffalo Barua 3 (Anders Holmberg) My father was Emil Holmberg who, at the outbreak of the 1914-18 war joined the British Forces. He, together with a friend, also a Swede, Captain Baron Erik von Otter MC, served with them throughout the war. They were both attached to the KAR Maxim Gun Section. I have a photograph of the two of them seated, each with a Maxim gun, and with their mounted unit of horses lined up in the background. Another photograph shows their mule transport section en route to the front line border between Kenya and Tanganyika, to join the fight against a German army. …..