A teacher arrested in the murder of a married couple found stabbed to death on a trail in an Arkansas park was held without bond after a brief court appearance on Friday. Andrew James McGann, 28, of Springdale, Arkansas, was appointed a public defender, according to ABC affiliate KHBS.

Clinton David Brink, 43, and Cristen Amanda Brink, 41, were found dead Saturday at the park in Washington County, police said. They were hiking with their daughters, ages 7 and 9.

An Arizona woman is fundraising for a murdered Arkansas couple. See photos of Clinton and Cristen Brink, and a sketch and photo of a man police sought.