Rock band Boston's lead vocalist Brad Delp's death due to carbon monoxide poisoning was a suicide, the New Hampshire police's Lt William Baldwin said in a statement on Thursday. “The 55-year-old Bradley Delp committed suicide and the cause of death was carbon monoxide,” the statement said.

The singer was found dead on March 9 in the bathroom of his Atkinson house and his death seemed to be due to carbon monoxide poisoning. Delp was found by his girlfriend Pamela Sullivan, who he was to marry during the band's 2007 tour. A suicide note was found with other notes cautioning anyone who found him about the deadly gas in the bathroom. “Mr Brad Delp. J'ai une ame solitaire. I am a lonely soul,” read the suicide note.

The carbon monoxide gas was generated through two charcoal grills and Delp sealed the bathroom to allow the gas to concentrate. A tube obtained from a vehicular exhaust pipe help facilitate the suicide. “To whoever finds this I have hopefully committed suicide. Plan B was to asphyxiate myself in my car. I take complete and sole responsibility for my present situation. I have lost my desire to live,” Delp wrote in several notes scattered around the house before he killed himself.

According to Sullivan, Delp was undergoing depression. The singer was earlier married to Micki Delp and shares two children with her. After the tragedy, Boston and Beatlejuice, a Beatles cover band that Delp used to play for, announced that they have scrapped their upcoming performances. Boston guitarist Tom Scholz, announcing the death and the subsequent summer tour cancellation on the band's official Web site, said: “My heart goes out to his wonderful fiancée Pamela, his two children and other family members, his close friends and band mates, and to the millions of people whose lives were made a little brighter by the sound of his voice. He will be dearly missed.”
Born on June 12, 1951, Delp developed a taste for music at age 13 when the Beatles' performance on The Ed Sullivan Show inspired him to buy a guitar. Later, he chanced upon Tom Scholz, guitarist Barry Goudreau and drummer Jim Masdea and joined them to form Boston. Though he broke away sometime in late 1970s to join Goudreau's band, he came back to Boston in 1986. During his association with Boston, he produced albums like Boston, Don't Look Back, and more recently Corporate America, spawning hits like More Than a Feeling, Peace of Mind and Long Time, among others.

“When someone asked me what Brad was like, the first words that always came to mind were 'nice guy'. Oddly, his incredible performing abilities seem barely worth mentioning compared to his attributes as a human being. He was soft spoken yet very quick and funny,” Scholz wrote on his site while recounting his days with Delp, who shared Scholz's vegetarianism and passion for humanitarian causes.

Details of Delp's funeral arrangements are not clear as yet.