Original sentence: He had received a unrestricted $25,000 grant from Monsanto that was to be used "at your discretion in support of your research and outreach projects".Nature, in an August 2015 article, alleged that he had close ties to Monsanto and other biotechnology interests.The University released documents which indicated that he had not committed scientific misconduct
Edited sentence: According to an article in Nature, in August 2015, the investigation began to produce documents which indicated that he had not committed scientific misconduct, but revealed that he had close ties to Monsanto and other biotechnology interests and that he had received a unrestricted $25,000 grant from Monsanto to be used "at your discretion in support of your research and outreach projects"