Local authorities have said there is no evidence of foul play in the deaths of Robert Fuller in Palmdale and Malcolm Harsch in Victorville and early indications point both to suicide, but sheriffs have pledged to continue to investigate the cases.

People who participated in a town hall hosted by Los Angeles County Sheriff Alex Villanueva on Monday also voiced concerns that Fuller and Harsch may have been lynched.

The FBI, U.S. attorney’s office in the Central District of California and the U.S. Department of Justice’s Civil Rights Division are monitoring the investigations of the Los Angeles County and San Bernardino County sheriffs, authorities said in a statement.

The state Senate began its session Monday with a moment of silence for Fuller and Harsch, a 38-year-old homeless black man who was found hanging from a tree on May 31 in Victorville, a desert city about 45 miles (72 kilometers) east of Palmdale.

The San Bernardino County Sheriff’s Department said foul play was not suspected in the death of Harsch, but his family said in a statement issued Saturday that they were concerned it will be ruled a suicide to avoid further attention.