A man who pleaded guilty to entering the U.S. Capitol on Jan. 6 helped prosecutors in their quest to charge a U.S. Capitol Police (USCP) officer, new court documents show. Jacob Hiles, a 42-year-old charter boat captain from Virginia, received a message from the officer on Jan. 7, prosecutors said in a filing entered Monday. The pair continued exchanging Facebook messages over the ensuing months and the officer, Michael Riley, even invited Hiles to stay at his home if he traveled back to the nation’s capital. After his arrest, Hiles agreed to cooperate with investigators and debriefed them on his interactions with Riley, even though the government promised nothing in return, prosecutors said. “During the debrief, Hiles answered questions regarding the timing, nature, and channels of communication with Riley. The information provided was valuable in its own right, and assisted the government in scoping its investigation,” they said. The cooperation …