Son, 28, of former Harper Collins and NBA (n)役員／(a)執行力のある Gregory Giangrande is killed in motorcycle 衝突，墜落 along with pal as they returned from 十分な Moon Party in Thailand

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The son of a former HarperCollins boss and his friend were killed in a horror 長，率いる-on 衝突，墜落 returning from the famous 十分な Moon Party in Thailand.

Elias Giangrande, 28, son of the former publishing 副／悪徳行為 大統領，／社長 Gregory Giangrande, and his friend Jack Niehaus, 25, were riding a motorcycle 支援する to their hotel from the beach party on Wednesday.

Police 申し立てられた／疑わしい they were 'drunk and スピード違反' without wearing helmets when they 衝突，墜落d into a taxi along a dimly lit road on Koh Pha Ngan island, but are yet to receive the results of 血 alcohol 実験（する）s.

Koh Pha Ngan police said they received a 報告（する）／憶測 about the 衝突，墜落 at 4.30am 地元の time.?The 十分な Moon Party, which happens once a month, took place on Tuesday.

Gregory - also a New York 地位，任命する columnist - flew to Thailand after he was told of 衝突，墜落 伴う／関わるing his son, who was a keen scuba diver and ran a 高級な ヨットing company in Miami.

Elias Giangrande, 28, (権利) the son of a former HarperCollins boss,?Gregory Giangrande, (left) and his pal were killed in a horror 長，率いる-on 衝突，墜落 returning from the 悪名高い 十分な Moon Party in Thailand

Jack Niehaus, 25, (pictured with his father Troy) was riding on the 支援する of the motorcycle and was killed along with him

Jack's sister Priya Niehau s told DailyMail.com the pair were traveling around Asia with two friends and were a week into their three-week trip.

She said her brother ran out of 石油 on his way 支援する to their hotel, and Elias drove 支援する to 選ぶ him up before they 衝突，墜落d.

'Think of all the best 質s of a human 存在, then 追加する a cheeky joke, and a never ending smile,' she said in a 共同の 声明 with Jack's father Troy and mother Nicole.

'He had an aspiring career in 私的な wealth at UBS, but his passions were travel, racing, and he dreamt of having a family of his own.

'Jack had a 肯定的な 衝撃 on everyone he 遭遇（する）d, and we will 行方不明になる that, along with his selflessness.

'He was a ray of 日光 no 事柄 the circumstances and most of all he was inclusive, loving, and 肉親，親類d to all. He may have only had 25 years, but man were those years a true gift.?

'A son, a brother, and most of all everyone's best friend.'

Elias with his model girlfriend?Brielle Middleton on a ヨット in Miami a week b efore his death

Photographs 逮捕（する）d at the scene show the 前線 of the taxi 完全に ripped out, in a 陳列する，発揮する of the 巨大な 軍隊 the bikes 衝突，墜落d into the 乗り物 with

陸軍大佐 Panya Niratimanon, superintendent of the Koh Pha Ngan Police 駅／配置する, said 警官，（賞などを）獲得するs 検査／視察するd the scene and 設立する a Toyota 好転 トラックで運ぶ 変えるd into a 乗客 乗り物 with a 粉々にするd windshield and 損失d hood.

Photographs from at the scene showed the 前線 of the 乗り物 完全に ripped? out, showing the 巨大な 軍隊 the bikes 衝突，墜落d into the taxi with.

Horror images also showed the 難破させるd 黒人／ボイコット and yellow Yamaha Aerox motorbike that Elias and Jack were riding in a mangled heap nearby and their 団体／死体s were sprawled on the ground.

The two shirtless American tourists were both pronounced dead at the scene, while taxi driver Supachai Lertsak, 44, was waiting for 当局.

The 難破させるd Yamaha Aerox motorbike that Elias and his friend had been riding was in a mangled heap nearby and their 団体／死体s were sprawled on the ground

中尉／大尉／警部補 Suteep Chadakan, 副 視察官 General of the Koh Phangan Police 駅／配置する, said he was still waiting for 血 alcohol 実験（する） results from the hospital.

'We believe they were [drunk] because they were returning 支援する home from the 十分な Moon Party,' he said.

'As for the songthaew driver, he was not drunk. The police 行為／行うd an 調査 by 成し遂げるing a breathalyzer alcohol 実験（する） at the scene, but no alcohol was （悪事，秘密などを）発見するd.

'As for the CCTV cameras, the とじ込み／提出するs are still 存在 回復するd. That area was very dark. It is 推定する／予想するd that the 出来事/事件 cannot be 明確に seen.

'From the 尋問, it was 設立する that both the minibus driver and the 死んだ were スピード違反 and 衝突する／食い違うd wi th each other.

'The 死んだ drove into the 小道／航路 of a minibus. The remains of both 乗り物s were scattered within the 小道／航路 of the minibus.

'The 団体／死体s are now with the 救助（する） team. 公式の／役人s have 連係させた for the family to come 選ぶ up the 団体／死体s.'

Koh Pha Ngan police said they received a 報告（する）／憶測 about the 衝突，墜落 at 4:30am. The 十分な Moon Party, which happens once a month, took place on April 23

Elias, pictured last year with girlfriend Brielle Middleton, who has not yet spoken out on the 最近の death of her boyfriend?

The taxi driver was 拘留するd for 尋問 and （人命などを）奪う，主張するd both he and the tourists were スピード違反 at the time of the 事故.

Police said they 衝突する／食い違うd when the motorcycle driven by Elias veered into the oncoming taxi's 小道／航路.

The tourists' 団体／死体s were taken to the Koh Pha Ngan Hospital for 検視s, and are on their way to Bangkok to 準備する for 本国送還.

公式の／役人s said they were 調整するing with the US 大使館 in Thailand to help the families of the 死んだ bring the 団体／死体s home.

Elias Atticus Giangrande was an 'experienced ヨットing and 飛び込み 指導者', によれば his 商売／仕事 website Captain is on Call.

The boating 熱中している人 had a?USCG 200-トン Masters 資格, and was also a scuba and Zapata Racing Team Flyboard 指導者.?

His most 最近の 地位，任命する on Instagram was uploaded just one week ago, showing him and his model girlfriend Brielle Middleton in a 一連の sunny 位置／汚点／見つけ出すs with the 場所 tagged: 'Everywhere'.

Elias' mother, Sheila Hultgren Giangrande (pictured) 作品 closely with charity Lifeline?

Brielle commented beneath the 地位，任命する: 'I love u!' と一緒に a heart emoji, and Elias had 答える／応じるd: 'I love you too!'

The model, designer, and 商売／仕事 owner has not yet spoken about the death of her boyfriend and did not answer calls on Friday.

Elias is also the son of Gregory Giangrande, who is 現在／一般に the 全世界の 長，指導者 People and Communications Officer of Ellucian, a 私的な Education Tech company.

Jack Niehaus is a wealth 管理／経営 associate at UBS bank who 以前 worked as a （弁護士の）依頼人 service associate for 投資 company Morgan Stanley.?

Gregory 作品 as a career advice writer for the New York 地位，任命する, with his 広範囲にわたって 認めるd GoToGreg column.

He is also a 週刊誌 on-空気／公表する contributor for IHeart 無線で通信する WOR 710 talk show with Len Berman and Michael Reidel and たびたび（訪れる） television on-空気／公表する contributor for Good Day NY on Fox5 News.

Gregory?was 以前は the 上級の 副／悪徳行為 大統領，／社長 and 長，指導者 human 資源s officer for HarperCollins Publishers.

Gregory Giangrande, who is 現在／一般に the 全世界の 長，指導者 People and Communications Officer of Ellucian, a 私的な Education Tech company, also 作品 as a career advice writer for the New York 地位，任命する, with his 広範囲にわたって 認めるd GoToGreg column

Elias pictured with his girlfriend Brielle in January, three months before he died in a horror bike 粉砕する in Thailand earlier this week

Elias' mother,?Sheila Hultgren Giangrande, was last year photographed at the Lifeline New York 利益 Dinner at the Explorers Club, と一緒に 栄冠を与える Princess Katherine of Serbia, and 栄冠を与える Prince Alexander of Serbia - an event also …に出席するd by her late son.

Lifeline 人道的な Organization is an international 人道的な organization 設立するd in 1993 in 返答 to the 悲劇の 状況／情勢 in the former Yugoslavia, which was 疫病／悩ますd by 衝突 and 許可／制裁s.?

Lifeline’s 使節団 is to 緩和する and relieve the 苦しむing of 肉体的に and mentally 無能にするd children, 孤児s, and the 年輩の and 改善する 医療の 施設s throughout the country.?

The Thai 十分な Moon Party is an all-night beach party on the island of Ko Phangan.?

The party takes place on the night of, before, or after every 十分な moon that is usually …に出席するd by hundreds of backpackers.

However, the event has become a 悪名高い 祝賀 filled with 麻薬s and booze, with マリファナ now 合法的な on the island.?